#1A557D#1A557D

#1A557D is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.2% C 0.089 H 242.9°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#1A557D
RGB	rgb(26, 85, 125)
HSL	hsl(204, 66%, 30%)
HSV	hsv(204, 79%, 49%)
CMYK	cmyk(79.2%, 32%, 0%, 51%)
CIE-LAB	lab(34.39, -3.93, -27.92)
CIE-LCH	lch(34.39, 28.20, 261.98°)
OKLab	oklab(43.22% -0.0405 -0.0791)
OKLCH	oklch(43.22% 0.089 242.9)
XYZ	xyz(7.3747, 8.1964, 20.5914)
Luminance	0.0820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A557D #7D421A

analogous

#1A7D73 #1A557D #1A247D

triadic

#1A557D #7D1A55 #557D1A

tetradic

#1A557D #731A7D #7D421A #247D1A

square

#1A557D #731A7D #7D421A #247D1A

split-complementary

#1A557D #7D1A24 #7D731A

monochromatic

#051119 #0F334A #1A557D #2577B0 #3B98D6

Accessibility & contrast

On white

7.96

#1A557D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#1A557D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A557D

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A557D	#FFFFFF	#000000	##FFFFFF
##1A557D	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42567F

Deuteranopia (green-blind)

#354D7C

Tritanopia (blue-blind)

#005F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1a557d;
/* rgb */ color: rgb(26, 85, 125);
/* oklch */ color: oklch(43.2% 0.089 242.9);

Tailwind

colors: {
  custom: {
    50: '#6684a3',
    500: '#1a557d',
    950: '#000000',
  },
}

SCSS

$custom: #1a557d;
$custom-light: #6684a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a557d",
  "rgb": {
    "r": 26,
    "g": 85,
    "b": 125
  },
  "hsl": {
    "h": 204.242,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.43216,
    "c": 0.0889,
    "h": 242.9
  },
  "luminance": 0.08197
}

Semantic roles & 50–950 ramp

primary

#1A557D

secondary

#B16F42

accent

#843FE9

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1A557D

Body copy rendered with the generated semantic roles for this colour.

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