#1C257C#1C257C

#1C257C is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.145 H 270.8°. Best body text is #FFFFFF at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#1C257C
RGB	rgb(28, 37, 124)
HSL	hsl(234, 63%, 30%)
HSV	hsv(234, 77%, 49%)
CMYK	cmyk(77.4%, 70.2%, 0%, 51.4%)
CIE-LAB	lab(20.14, 28.74, -50.22)
CIE-LCH	lch(20.14, 57.86, 299.78°)
OKLab	oklab(32.33% 0.002 -0.1453)
OKLCH	oklch(32.33% 0.145 270.8)
XYZ	xyz(4.7773, 3.0247, 19.3969)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C257C #7C731C

analogous

#1C557C #1C257C #431C7C

triadic

#1C257C #7C1C25 #257C1C

tetradic

#1C257C #7C1C55 #7C731C #1C7C43

square

#1C257C #7C1C55 #7C731C #1C7C43

split-complementary

#1C257C #7C431C #557C1C

monochromatic

#060719 #11164A #1C257C #2734AE #3F4DD4

Accessibility & contrast

On white

13.08

#1C257C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1C257C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C257C

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C257C	#FFFFFF	#000000	##FFFFFF
##1C257C	1.00	13.08	1.61	13.08
#FFFFFF	13.08	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002C7A

Tritanopia (blue-blind)

#003D4D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c257c;
/* rgb */ color: rgb(28, 37, 124);
/* oklch */ color: oklch(32.3% 0.145 270.8);

Tailwind

colors: {
  custom: {
    50: '#695fa3',
    500: '#1c257c',
    950: '#000000',
  },
}

SCSS

$custom: #1c257c;
$custom-light: #695fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c257c",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 124
  },
  "hsl": {
    "h": 234.375,
    "s": 63.158,
    "l": 29.804
  },
  "oklch": {
    "l": 0.32326,
    "c": 0.1453,
    "h": 270.8
  },
  "luminance": 0.03025
}

Semantic roles & 50–950 ramp

primary

#1C257C

secondary

#B0A644

accent

#D742E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1C257C

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

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