#1D548C#1D548C

#1D548C is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 44.0% C 0.109 H 252.1°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#1D548C
RGB	rgb(29, 84, 140)
HSL	hsl(210, 66%, 33%)
HSV	hsv(210, 79%, 55%)
CMYK	cmyk(79.3%, 40%, 0%, 45.1%)
CIE-LAB	lab(34.99, 3.00, -36.17)
CIE-LCH	lch(34.99, 36.29, 274.74°)
OKLab	oklab(43.99% -0.0334 -0.1032)
OKLCH	oklch(43.99% 0.109 252.1)
XYZ	xyz(8.4089, 8.4943, 26.0022)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D548C #8C551D

analogous

#1D8B8C #1D548C #1D1D8C

triadic

#1D548C #8C1D54 #548C1D

tetradic

#1D548C #8C1D8B #8C551D #1D8C1D

square

#1D548C #8C1D8B #8C551D #1D8C1D

split-complementary

#1D548C #8C1D1D #8B8C1D

monochromatic

#081727 #123659 #1D548C #2872BF #4A91D9

Accessibility & contrast

On white

7.78

#1D548C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1D548C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D548C

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D548C	#FFFFFF	#000000	##FFFFFF
##1D548C	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39588E

Deuteranopia (green-blind)

#284E8B

Tritanopia (blue-blind)

#006169

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d548c;
/* rgb */ color: rgb(29, 84, 140);
/* oklch */ color: oklch(44.0% 0.109 252.1);

Tailwind

colors: {
  custom: {
    50: '#6b83ae',
    500: '#1d548c',
    950: '#000000',
  },
}

SCSS

$custom: #1d548c;
$custom-light: #6b83ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d548c",
  "rgb": {
    "r": 29,
    "g": 84,
    "b": 140
  },
  "hsl": {
    "h": 210.27,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.43987,
    "c": 0.10851,
    "h": 252.1
  },
  "luminance": 0.08495
}

Semantic roles & 50–950 ramp

primary

#1D548C

secondary

#BC8349

accent

#953FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D548C

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

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