#1D548F#1D548F

#1D548F is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.2% C 0.113 H 253.1°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#1D548F
RGB	rgb(29, 84, 143)
HSL	hsl(211, 66%, 34%)
HSV	hsv(211, 80%, 56%)
CMYK	cmyk(79.7%, 41.3%, 0%, 43.9%)
CIE-LAB	lab(35.17, 4.19, -37.71)
CIE-LCH	lch(35.17, 37.94, 276.35°)
OKLab	oklab(44.18% -0.0327 -0.1077)
OKLCH	oklch(44.18% 0.113 253.1)
XYZ	xyz(8.6331, 8.5840, 27.1832)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D548F #8F581D

analogous

#1D8D8F #1D548F #1F1D8F

triadic

#1D548F #8F1D54 #548F1D

tetradic

#1D548F #8F1D8D #8F581D #1D8F1F

square

#1D548F #8F1D8D #8F581D #1D8F1F

split-complementary

#1D548F #8F1F1D #8D8F1D

monochromatic

#081829 #13365C #1D548F #2772C2 #4C91DB

Accessibility & contrast

On white

7.73

#1D548F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#1D548F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D548F

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D548F	#FFFFFF	#000000	##FFFFFF
##1D548F	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385891

Deuteranopia (green-blind)

#254E8E

Tritanopia (blue-blind)

#00626A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1d548f;
/* rgb */ color: rgb(29, 84, 143);
/* oklch */ color: oklch(44.2% 0.113 253.1);

Tailwind

colors: {
  custom: {
    50: '#6b83b0',
    500: '#1d548f',
    950: '#000000',
  },
}

SCSS

$custom: #1d548f;
$custom-light: #6b83b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d548f",
  "rgb": {
    "r": 29,
    "g": 84,
    "b": 143
  },
  "hsl": {
    "h": 211.053,
    "s": 66.279,
    "l": 33.725
  },
  "oklch": {
    "l": 0.44184,
    "c": 0.1126,
    "h": 253.1
  },
  "luminance": 0.08585
}

Semantic roles & 50–950 ramp

primary

#1D548F

secondary

#BD864B

accent

#973FE9

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#080A10

muted

#7A7C7F

Preview Lab

Preview with #1D548F

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

Preview Lab → · Contrast checker → · Palette generator →