#1C256C#1C256C

#1C256C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 30.7% C 0.123 H 271.5°. Best body text is #FFFFFF at 13.72:1 contrast (WCAG AA passes).

Color values

HEX	#1C256C
RGB	rgb(28, 37, 108)
HSL	hsl(233, 59%, 27%)
HSV	hsv(233, 74%, 42%)
CMYK	cmyk(74.1%, 65.7%, 0%, 57.6%)
CIE-LAB	lab(18.59, 22.55, -42.47)
CIE-LCH	lch(18.59, 48.09, 297.96°)
OKLab	oklab(30.72% 0.0032 -0.1226)
OKLCH	oklch(30.72% 0.123 271.5)
XYZ	xyz(3.8463, 2.6523, 14.4937)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C256C #6C631C

analogous

#1C4D6C #1C256C #3B1C6C

triadic

#1C256C #6C1C25 #256C1C

tetradic

#1C256C #6C1C4D #6C631C #1C6C3B

square

#1C256C #6C1C4D #6C631C #1C6C3B

split-complementary

#1C256C #6C3B1C #4D6C1C

monochromatic

#060818 #0F143B #1C256C #29369D #3748CB

Accessibility & contrast

On white

13.72

#1C256C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1C256C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C256C

13.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C256C	#FFFFFF	#000000	##FFFFFF
##1C256C	1.00	13.72	1.53	13.72
#FFFFFF	13.72	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00316E

Deuteranopia (green-blind)

#002A6B

Tritanopia (blue-blind)

#003744

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c256c;
/* rgb */ color: rgb(28, 37, 108);
/* oklch */ color: oklch(30.7% 0.123 271.5);

Tailwind

colors: {
  custom: {
    50: '#655f97',
    500: '#1c256c',
    950: '#000000',
  },
}

SCSS

$custom: #1c256c;
$custom-light: #655f97;
$custom-dark: #000000;

JSON

{
  "hex": "#1c256c",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 108
  },
  "hsl": {
    "h": 233.25,
    "s": 58.824,
    "l": 26.667
  },
  "oklch": {
    "l": 0.30718,
    "c": 0.12266,
    "h": 271.5
  },
  "luminance": 0.02653
}

Semantic roles & 50–950 ramp

primary

#1C256C

secondary

#A19643

accent

#D046E2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1C256C

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

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