#1C588F#1C588F

#1C588F is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.1% C 0.109 H 250.1°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C588F
RGB	rgb(28, 88, 143)
HSL	hsl(209, 67%, 34%)
HSV	hsv(209, 80%, 56%)
CMYK	cmyk(80.4%, 38.5%, 0%, 43.9%)
CIE-LAB	lab(36.38, 1.47, -35.78)
CIE-LCH	lch(36.38, 35.81, 272.36°)
OKLab	oklab(45.12% -0.0369 -0.102)
OKLCH	oklch(45.12% 0.109 250.1)
XYZ	xyz(8.9247, 9.2084, 27.2883)
Luminance	0.0921 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C588F #8F531C

analogous

#1C8F8C #1C588F #1C1E8F

triadic

#1C588F #8F1C58 #588F1C

tetradic

#1C588F #8C1C8F #8F531C #1E8F1C

square

#1C588F #8C1C8F #8F531C #1E8F1C

split-complementary

#1C588F #8F1C1E #8F8C1C

monochromatic

#081929 #12395C #1C588F #2677C2 #4A96DC

Accessibility & contrast

On white

7.39

#1C588F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1C588F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C588F

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C588F	#FFFFFF	#000000	##FFFFFF
##1C588F	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5B91

Deuteranopia (green-blind)

#2C518E

Tritanopia (blue-blind)

#00656C

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #1c588f;
/* rgb */ color: rgb(28, 88, 143);
/* oklch */ color: oklch(45.1% 0.109 250.1);

Tailwind

colors: {
  custom: {
    50: '#6b86b0',
    500: '#1c588f',
    950: '#000000',
  },
}

SCSS

$custom: #1c588f;
$custom-light: #6b86b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c588f",
  "rgb": {
    "r": 28,
    "g": 88,
    "b": 143
  },
  "hsl": {
    "h": 208.696,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.45124,
    "c": 0.10851,
    "h": 250.1
  },
  "luminance": 0.09209
}

Semantic roles & 50–950 ramp

primary

#1C588F

secondary

#BE8149

accent

#903EEA

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1C588F

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

Preview Lab → · Contrast checker → · Palette generator →