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Straightforward Bluestem

#1d9888
Notes

Straightforward Bluestem (#1D9888) is a true teal with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (172°, 68%, 35%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1d9888
RGB
rgb(29, 152, 136)
HSL
hsl(172, 68%, 35%)
HWB
hwb(172 11% 40%)
OKLCH
oklch(61.3% 0.104 181.5)
P3
color(display-p3 0.2846 0.5873 0.5342)
HSV
hsv(172, 81%, 60%)
LAB
lab(56.58% -35.75 -0.77)
LCH
lch(56.58% 35.76 181.23)
CMYK
cmyk(81%, 0%, 11%, 40%)

Etymology

Straightforward
adjective

English compound straight + forward — sharing root with German geradeaus. As a color modifier, straightforward implies a clear-and-direct-and-unencumbered quality where the hue carries the visual register of clear-aim-and-uncomplicated character. Sits at the crisp-and-honest end of the grid, parallel to candid and direct in usage.

Bluestem
noun

The genera Andropogon and Schizachyrium — North American native prairie grasses whose stems shift from green to blue-purple in autumn. The color refers to S. scoparium (little bluestem) in midsummer: a soft, slightly cool blue-green-gray with the matte finish of upright prairie grass.

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.

#1d9888
Original
#918f87
Protanopia
#818389
Deuteranopia
#009b93
Tritanopia
#7d7d7d
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).
AA Largeon White
3.56:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.90:1

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
##1D9888
Display P3
Display P3
color(display-p3 0.2846 0.5873 0.5342)
P3 has subtle headroomOKLCH chroma 0.104

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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