#1C559D#1C559D

#1C559D is a mid, vivid cyan. Relative luminance 0.092; OKLCH L 45.4% C 0.131 H 256.3°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#1C559D
RGB	rgb(28, 85, 157)
HSL	hsl(213, 70%, 36%)
HSV	hsv(213, 82%, 62%)
CMYK	cmyk(82.2%, 45.9%, 0%, 38.4%)
CIE-LAB	lab(36.32, 9.02, -44.33)
CIE-LCH	lch(36.32, 45.24, 281.50°)
OKLab	oklab(45.35% -0.031 -0.1272)
OKLCH	oklch(45.35% 0.131 256.3)
XYZ	xyz(9.8109, 9.1770, 33.1460)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C559D #9D641C

analogous

#1C969D #1C559D #231C9D

triadic

#1C559D #9D1C55 #559D1C

tetradic

#1C559D #9D1C96 #9D641C #1C9D23

square

#1C559D #9D1C96 #9D641C #1C9D23

split-complementary

#1C559D #9D231C #969D1C

monochromatic

#091D35 #133969 #1C559D #2571D1 #5391E0

Accessibility & contrast

On white

7.41

#1C559D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1C559D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C559D

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C559D	#FFFFFF	#000000	##FFFFFF
##1C559D	1.00	7.41	2.84	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5CA0

Deuteranopia (green-blind)

#11509C

Tritanopia (blue-blind)

#006671

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1c559d;
/* rgb */ color: rgb(28, 85, 157);
/* oklch */ color: oklch(45.4% 0.131 256.3);

Tailwind

colors: {
  custom: {
    50: '#6e84ba',
    500: '#1c559d',
    950: '#000000',
  },
}

SCSS

$custom: #1c559d;
$custom-light: #6e84ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1c559d",
  "rgb": {
    "r": 28,
    "g": 85,
    "b": 157
  },
  "hsl": {
    "h": 213.488,
    "s": 69.73,
    "l": 36.275
  },
  "oklch": {
    "l": 0.45354,
    "c": 0.13093,
    "h": 256.3
  },
  "luminance": 0.09178
}

Semantic roles & 50–950 ramp

primary

#1C559D

secondary

#C39151

accent

#9E3BED

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1C559D

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

Preview Lab → · Contrast checker → · Palette generator →