#1D588E#1D588E

#1D588E is a mid, moderate cyan. Relative luminance 0.092; OKLCH L 45.1% C 0.107 H 249.9°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#1D588E
RGB	rgb(29, 88, 142)
HSL	hsl(209, 66%, 34%)
HSV	hsv(209, 80%, 56%)
CMYK	cmyk(79.6%, 38%, 0%, 44.3%)
CIE-LAB	lab(36.35, 1.20, -35.22)
CIE-LCH	lch(36.35, 35.24, 271.95°)
OKLab	oklab(45.09% -0.0366 -0.1004)
OKLCH	oklch(45.09% 0.107 249.9)
XYZ	xyz(8.8770, 9.1926, 26.8924)
Luminance	0.0919 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D588E #8E531D

analogous

#1D8E8B #1D588E #1D1F8E

triadic

#1D588E #8E1D58 #588E1D

tetradic

#1D588E #8B1D8E #8E531D #1F8E1D

square

#1D588E #8B1D8E #8E531D #1F8E1D

split-complementary

#1D588E #8E1D1F #8E8B1D

monochromatic

#081928 #13395B #1D588E #2777C1 #4B96DA

Accessibility & contrast

On white

7.40

#1D588E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#1D588E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D588E

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D588E	#FFFFFF	#000000	##FFFFFF
##1D588E	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F5B90

Deuteranopia (green-blind)

#2E518D

Tritanopia (blue-blind)

#00656C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1d588e;
/* rgb */ color: rgb(29, 88, 142);
/* oklch */ color: oklch(45.1% 0.107 249.9);

Tailwind

colors: {
  custom: {
    50: '#6b86af',
    500: '#1d588e',
    950: '#000000',
  },
}

SCSS

$custom: #1d588e;
$custom-light: #6b86af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d588e",
  "rgb": {
    "r": 29,
    "g": 88,
    "b": 142
  },
  "hsl": {
    "h": 208.673,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.45089,
    "c": 0.10686,
    "h": 249.9
  },
  "luminance": 0.09194
}

Semantic roles & 50–950 ramp

primary

#1D588E

secondary

#BD814A

accent

#903FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #1D588E

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

Preview Lab → · Contrast checker → · Palette generator →