#1C538C#1C538C

#1C538C is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.7% C 0.110 H 252.5°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#1C538C
RGB	rgb(28, 83, 140)
HSL	hsl(211, 67%, 33%)
HSV	hsv(211, 80%, 55%)
CMYK	cmyk(80%, 40.7%, 0%, 45.1%)
CIE-LAB	lab(34.65, 3.53, -36.71)
CIE-LCH	lch(34.65, 36.88, 275.50°)
OKLab	oklab(43.71% -0.0331 -0.1048)
OKLCH	oklch(43.71% 0.11 252.5)
XYZ	xyz(8.3040, 8.3259, 25.9753)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C538C #8C551C

analogous

#1C8B8C #1C538C #1D1C8C

triadic

#1C538C #8C1C53 #538C1C

tetradic

#1C538C #8C1C8B #8C551C #1C8C1D

square

#1C538C #8C1C8B #8C551C #1C8C1D

split-complementary

#1C538C #8C1D1C #8B8C1C

monochromatic

#081726 #123559 #1C538C #2671BF #4890DA

Accessibility & contrast

On white

7.88

#1C538C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1C538C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C538C

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C538C	#FFFFFF	#000000	##FFFFFF
##1C538C	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#38578E

Deuteranopia (green-blind)

#254D8B

Tritanopia (blue-blind)

#006168

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1c538c;
/* rgb */ color: rgb(28, 83, 140);
/* oklch */ color: oklch(43.7% 0.110 252.5);

Tailwind

colors: {
  custom: {
    50: '#6a82ae',
    500: '#1c538c',
    950: '#000000',
  },
}

SCSS

$custom: #1c538c;
$custom-light: #6a82ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c538c",
  "rgb": {
    "r": 28,
    "g": 83,
    "b": 140
  },
  "hsl": {
    "h": 210.536,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.43713,
    "c": 0.10994,
    "h": 252.5
  },
  "luminance": 0.08327
}

Semantic roles & 50–950 ramp

primary

#1C538C

secondary

#BC8348

accent

#953EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1C538C

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

Preview Lab → · Contrast checker → · Palette generator →