#1D4B72#1D4B72

#1D4B72 is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 40.1% C 0.083 H 247.3°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#1D4B72
RGB	rgb(29, 75, 114)
HSL	hsl(208, 59%, 28%)
HSV	hsv(208, 75%, 45%)
CMYK	cmyk(74.6%, 34.2%, 0%, 55.3%)
CIE-LAB	lab(30.66, -1.38, -26.94)
CIE-LCH	lch(30.66, 26.97, 267.07°)
OKLab	oklab(40.11% -0.0319 -0.0764)
OKLCH	oklch(40.11% 0.083 247.3)
XYZ	xyz(6.0589, 6.5076, 16.8531)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4B72 #72441D

analogous

#1D726E #1D4B72 #1D2172

triadic

#1D4B72 #721D4B #4B721D

tetradic

#1D4B72 #6E1D72 #72441D #21721D

square

#1D4B72 #6E1D72 #72441D #21721D

split-complementary

#1D4B72 #721D21 #726E1D

monochromatic

#061018 #112B41 #1D4B72 #296BA3 #3C8BCD

Accessibility & contrast

On white

9.12

#1D4B72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1D4B72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4B72

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4B72	#FFFFFF	#000000	##FFFFFF
##1D4B72	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394D74

Deuteranopia (green-blind)

#2D4571

Tritanopia (blue-blind)

#005459

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1d4b72;
/* rgb */ color: rgb(29, 75, 114);
/* oklch */ color: oklch(40.1% 0.083 247.3);

Tailwind

colors: {
  custom: {
    50: '#657d9b',
    500: '#1d4b72',
    950: '#000000',
  },
}

SCSS

$custom: #1d4b72;
$custom-light: #657d9b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4b72",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 114
  },
  "hsl": {
    "h": 207.529,
    "s": 59.441,
    "l": 28.039
  },
  "oklch": {
    "l": 0.40106,
    "c": 0.08275,
    "h": 247.3
  },
  "luminance": 0.06508
}

Semantic roles & 50–950 ramp

primary

#1D4B72

secondary

#A67145

accent

#8D45E3

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1D4B72

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

Preview Lab → · Contrast checker → · Palette generator →