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Conquering Amur

#2557dd
Notes

Conquering Amur (#2557DD) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (224°, 73%, 51%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2557dd
RGB
rgb(37, 87, 221)
HSL
hsl(224, 73%, 51%)
HWB
hwb(224 15% 13%)
OKLCH
oklch(51.1% 0.211 264.3)
P3
color(display-p3 0.1969 0.3367 0.8354)
HSV
hsv(224, 83%, 87%)
LAB
lab(41.89% 33.39 -72.71)
LCH
lch(41.89% 80.01 294.67)
CMYK
cmyk(83%, 61%, 0%, 13%)

Etymology

Conquering
adjective

Latin conquīrere, to seek thoroughly — present-participle of conquer. As a color modifier, conquering implies a saturated-and-overwhelming-and-victorious quality where the hue overcomes neighboring colors through pure pigmentation strength. Sits at the bold-and-celebratory end of the grid, parallel to triumphant and dominant.

Amur
noun

The river forming the border between Russia and China — and the saturated deep blue of Amur River water at Khabarovsk and the surrounding Russian Far East taiga sky. Amur refers to mid-depth Amur River water at Khabarovsk: a saturated, slightly cool deep blue with the optical complexity of cold-temperate continental river.

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.

#2557dd
Original
#006ce1
Protanopia
#005bda
Deuteranopia
#007a92
Tritanopia
#565656
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
6.02:1
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
3.49:1

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
##2557DD
Display P3
Display P3
color(display-p3 0.1969 0.3367 0.8354)
P3 has visible headroomOKLCH chroma 0.211

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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