#1D548D#1D548D

#1D548D is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.1% C 0.110 H 252.4°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#1D548D
RGB	rgb(29, 84, 141)
HSL	hsl(211, 66%, 33%)
HSV	hsv(211, 79%, 55%)
CMYK	cmyk(79.4%, 40.4%, 0%, 44.7%)
CIE-LAB	lab(35.05, 3.40, -36.68)
CIE-LCH	lch(35.05, 36.84, 275.29°)
OKLab	oklab(44.05% -0.0332 -0.1047)
OKLCH	oklch(44.05% 0.11 252.4)
XYZ	xyz(8.4829, 8.5239, 26.3923)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D548D #8D561D

analogous

#1D8C8D #1D548D #1E1D8D

triadic

#1D548D #8D1D54 #548D1D

tetradic

#1D548D #8D1D8C #8D561D #1D8D1E

square

#1D548D #8D1D8C #8D561D #1D8D1E

split-complementary

#1D548D #8D1E1D #8C8D1D

monochromatic

#081827 #13365A #1D548D #2772C0 #4B91DA

Accessibility & contrast

On white

7.76

#1D548D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1D548D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D548D

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D548D	#FFFFFF	#000000	##FFFFFF
##1D548D	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39588F

Deuteranopia (green-blind)

#274E8C

Tritanopia (blue-blind)

#006269

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d548d;
/* rgb */ color: rgb(29, 84, 141);
/* oklch */ color: oklch(44.1% 0.110 252.4);

Tailwind

colors: {
  custom: {
    50: '#6b83af',
    500: '#1d548d',
    950: '#000000',
  },
}

SCSS

$custom: #1d548d;
$custom-light: #6b83af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d548d",
  "rgb": {
    "r": 29,
    "g": 84,
    "b": 141
  },
  "hsl": {
    "h": 210.536,
    "s": 65.882,
    "l": 33.333
  },
  "oklch": {
    "l": 0.44052,
    "c": 0.10987,
    "h": 252.4
  },
  "luminance": 0.08525
}

Semantic roles & 50–950 ramp

primary

#1D548D

secondary

#BC844A

accent

#953FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D548D

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

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