#1C538A#1C538A

#1C538A is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.6% C 0.107 H 251.7°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C538A
RGB	rgb(28, 83, 138)
HSL	hsl(210, 66%, 33%)
HSV	hsv(210, 80%, 54%)
CMYK	cmyk(79.7%, 39.9%, 0%, 45.9%)
CIE-LAB	lab(34.53, 2.74, -35.68)
CIE-LCH	lch(34.53, 35.78, 274.39°)
OKLab	oklab(43.58% -0.0336 -0.1018)
OKLCH	oklch(43.58% 0.107 251.7)
XYZ	xyz(8.1579, 8.2674, 25.2056)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C538A #8A531C

analogous

#1C8A8A #1C538A #1C1C8A

triadic

#1C538A #8A1C53 #538A1C

tetradic

#1C538A #8A1C8A #8A531C #1C8A1C

square

#1C538A #8A1C8A #8A531C #1C8A1C

split-complementary

#1C538A #8A1C1C #8A8A1C

monochromatic

#071624 #123457 #1C538A #2672BD #4790DA

Accessibility & contrast

On white

7.91

#1C538A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1C538A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C538A

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C538A	#FFFFFF	#000000	##FFFFFF
##1C538A	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39578C

Deuteranopia (green-blind)

#284D89

Tritanopia (blue-blind)

#006068

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c538a;
/* rgb */ color: rgb(28, 83, 138);
/* oklch */ color: oklch(43.6% 0.107 251.7);

Tailwind

colors: {
  custom: {
    50: '#6a82ac',
    500: '#1c538a',
    950: '#000000',
  },
}

SCSS

$custom: #1c538a;
$custom-light: #6a82ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1c538a",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 138
  },
  "hsl": {
    "h": 210,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.43582,
    "c": 0.10722,
    "h": 251.7
  },
  "luminance": 0.08268
}

Semantic roles & 50–950 ramp

primary

#1C538A

secondary

#BB8146

accent

#943FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1C538A

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

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