#1C558D#1C558D

#1C558D is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.3% C 0.109 H 251.5°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#1C558D
RGB	rgb(28, 85, 141)
HSL	hsl(210, 67%, 33%)
HSV	hsv(210, 80%, 55%)
CMYK	cmyk(80.1%, 39.7%, 0%, 44.7%)
CIE-LAB	lab(35.33, 2.62, -36.23)
CIE-LCH	lch(35.33, 36.33, 274.14°)
OKLab	oklab(44.26% -0.0347 -0.1034)
OKLCH	oklch(44.26% 0.109 251.5)
XYZ	xyz(8.5333, 8.6659, 26.4171)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C558D #8D541C

analogous

#1C8D8C #1C558D #1C1C8D

triadic

#1C558D #8D1C55 #558D1C

tetradic

#1C558D #8C1C8D #8D541C #1C8D1C

square

#1C558D #8C1C8D #8D541C #1C8D1C

split-complementary

#1C558D #8D1C1C #8D8C1C

monochromatic

#081727 #12365A #1C558D #2674C0 #4992DB

Accessibility & contrast

On white

7.68

#1C558D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1C558D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C558D

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C558D	#FFFFFF	#000000	##FFFFFF
##1C558D	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A598F

Deuteranopia (green-blind)

#294E8C

Tritanopia (blue-blind)

#00626A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1c558d;
/* rgb */ color: rgb(28, 85, 141);
/* oklch */ color: oklch(44.3% 0.109 251.5);

Tailwind

colors: {
  custom: {
    50: '#6a84af',
    500: '#1c558d',
    950: '#000000',
  },
}

SCSS

$custom: #1c558d;
$custom-light: #6a84af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c558d",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 141
  },
  "hsl": {
    "h": 209.735,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.44264,
    "c": 0.10908,
    "h": 251.5
  },
  "luminance": 0.08667
}

Semantic roles & 50–950 ramp

primary

#1C558D

secondary

#BD8248

accent

#933EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1C558D

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

Preview Lab → · Contrast checker → · Palette generator →