#1D4B80#1D4B80

#1D4B80 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.0% C 0.102 H 254.1°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B80
RGB	rgb(29, 75, 128)
HSL	hsl(212, 63%, 31%)
HSV	hsv(212, 77%, 50%)
CMYK	cmyk(77.3%, 41.4%, 0%, 49.8%)
CIE-LAB	lab(31.47, 4.16, -34.40)
CIE-LCH	lch(31.47, 34.65, 276.90°)
OKLab	oklab(41% -0.0279 -0.0982)
OKLCH	oklch(41% 0.102 254.1)
XYZ	xyz(6.9176, 6.8511, 21.3757)
Luminance	0.0685 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B80 #80521D

analogous

#1D7C80 #1D4B80 #201D80

triadic

#1D4B80 #801D4B #4B801D

tetradic

#1D4B80 #801D7C #80521D #1D8020

square

#1D4B80 #801D7C #80521D #1D8020

split-complementary

#1D4B80 #80201D #7C801D

monochromatic

#06111C #122E4E #1D4B80 #2868B2 #4387D4

Accessibility & contrast

On white

8.86

#1D4B80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1D4B80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B80

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B80	#FFFFFF	#000000	##FFFFFF
##1D4B80	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324F82

Deuteranopia (green-blind)

#22467F

Tritanopia (blue-blind)

#00575F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1d4b80;
/* rgb */ color: rgb(29, 75, 128);
/* oklch */ color: oklch(41.0% 0.102 254.1);

Tailwind

colors: {
  custom: {
    50: '#687ca5',
    500: '#1d4b80',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b80;
$custom-light: #687ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b80",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 128
  },
  "hsl": {
    "h": 212.121,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.41001,
    "c": 0.1021,
    "h": 254.1
  },
  "luminance": 0.06852
}

Semantic roles & 50–950 ramp

primary

#1D4B80

secondary

#B38045

accent

#9A42E6

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1D4B80

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

Preview Lab → · Contrast checker → · Palette generator →