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Firm Dianthus

#cb299a
Notes

Firm Dianthus (#CB299A) is a true magenta with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (318°, 66%, 48%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#cb299a
RGB
rgb(203, 41, 154)
HSL
hsl(318, 66%, 48%)
HWB
hwb(318 16% 20%)
OKLCH
oklch(57.9% 0.221 343.7)
P3
color(display-p3 0.7321 0.2245 0.5892)
HSV
hsv(318, 80%, 80%)
LAB
lab(47.78% 70.22 -23.19)
LCH
lch(47.78% 73.95 341.72)
CMYK
cmyk(0%, 80%, 24%, 20%)

Etymology

Firm
adjective

Latin firmus, strong / stable — sharing root with English farm (originally a fixed-yearly-rental). As a color modifier, firm implies a saturated-and-resolute quality where the hue holds its visual position without wavering. Sits at the bold-and-firm end of the grid, parallel to steadfast and unwavering in usage.

Dianthus
noun

Dianthus caryophyllus — the cultivated carnation of European florists' tradition, particularly the deep-magenta clove-pink cultivars whose spicy fragrance gave the carnation its eponymous Eugenia caryophyllata (clove tree) connection. Dianthus color refers to a fully opened Dianthus caryophyllus deep-magenta cultivar: a saturated, slightly cool deep magenta with the velvet finish of frilled petals around a calyx-throat. Greek Diós-anthos (god-flower).

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#cb299a
Original
#3e609d
Protanopia
#717b96
Deuteranopia
#d92860
Tritanopia
#545454
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon White
4.86:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.32:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##CB299A
Display P3
Display P3
color(display-p3 0.7321 0.2245 0.5892)
P3 has visible headroomOKLCH chroma 0.221

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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