#1C588E#1C588E

#1C588E is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.1% C 0.107 H 249.7°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#1C588E
RGB	rgb(28, 88, 142)
HSL	hsl(208, 67%, 33%)
HSV	hsv(208, 80%, 56%)
CMYK	cmyk(80.3%, 38%, 0%, 44.3%)
CIE-LAB	lab(36.33, 1.08, -35.27)
CIE-LCH	lch(36.33, 35.28, 271.75°)
OKLab	oklab(45.06% -0.0372 -0.1005)
OKLCH	oklch(45.06% 0.107 249.7)
XYZ	xyz(8.8492, 9.1783, 26.8911)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C588E #8E521C

analogous

#1C8E8B #1C588E #1C1F8E

triadic

#1C588E #8E1C58 #588E1C

tetradic

#1C588E #8B1C8E #8E521C #1F8E1C

square

#1C588E #8B1C8E #8E521C #1F8E1C

split-complementary

#1C588E #8E1C1F #8E8B1C

monochromatic

#081928 #12385B #1C588E #2678C1 #4996DB

Accessibility & contrast

On white

7.41

#1C588E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1C588E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C588E

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C588E	#FFFFFF	#000000	##FFFFFF
##1C588E	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)

#3F5B90

Deuteranopia (green-blind)

#2D518D

Tritanopia (blue-blind)

#00656C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1c588e;
/* rgb */ color: rgb(28, 88, 142);
/* oklch */ color: oklch(45.1% 0.107 249.7);

Tailwind

colors: {
  custom: {
    50: '#6b86af',
    500: '#1c588e',
    950: '#000000',
  },
}

SCSS

$custom: #1c588e;
$custom-light: #6b86af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c588e",
  "rgb": {
    "r": 28,
    "g": 88,
    "b": 142
  },
  "hsl": {
    "h": 208.421,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.4506,
    "c": 0.10718,
    "h": 249.7
  },
  "luminance": 0.09179
}

Semantic roles & 50–950 ramp

primary

#1C588E

secondary

#BD8049

accent

#8F3EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1C588E

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

Preview Lab → · Contrast checker → · Palette generator →