#1C257D#1C257D

#1C257D is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.4% C 0.147 H 270.8°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#1C257D
RGB	rgb(28, 37, 125)
HSL	hsl(234, 63%, 30%)
HSV	hsv(234, 78%, 49%)
CMYK	cmyk(77.6%, 70.4%, 0%, 51%)
CIE-LAB	lab(20.24, 29.12, -50.69)
CIE-LCH	lch(20.24, 58.46, 299.87°)
OKLab	oklab(32.43% 0.0019 -0.1467)
OKLCH	oklch(32.43% 0.147 270.8)
XYZ	xyz(4.8409, 3.0502, 19.7317)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C257D #7D741C

analogous

#1C567D #1C257D #431C7D

triadic

#1C257D #7D1C25 #257D1C

tetradic

#1C257D #7D1C56 #7D741C #1C7D43

square

#1C257D #7D1C56 #7D741C #1C7D43

split-complementary

#1C257D #7D431C #567D1C

monochromatic

#060719 #11164B #1C257D #2734AF #3F4DD4

Accessibility & contrast

On white

13.04

#1C257D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1C257D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C257D

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C257D	#FFFFFF	#000000	##FFFFFF
##1C257D	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003580

Deuteranopia (green-blind)

#002C7B

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c257d;
/* rgb */ color: rgb(28, 37, 125);
/* oklch */ color: oklch(32.4% 0.147 270.8);

Tailwind

colors: {
  custom: {
    50: '#6960a4',
    500: '#1c257d',
    950: '#000000',
  },
}

SCSS

$custom: #1c257d;
$custom-light: #6960a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c257d",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 125
  },
  "hsl": {
    "h": 234.433,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.3243,
    "c": 0.14668,
    "h": 270.8
  },
  "luminance": 0.03051
}

Semantic roles & 50–950 ramp

primary

#1C257D

secondary

#B1A744

accent

#D741E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1C257D

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

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