#1C337D#1C337D

#1C337D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.129 H 266.5°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#1C337D
RGB	rgb(28, 51, 125)
HSL	hsl(226, 63%, 30%)
HSV	hsv(226, 78%, 49%)
CMYK	cmyk(77.6%, 59.2%, 0%, 51%)
CIE-LAB	lab(23.98, 19.44, -44.58)
CIE-LCH	lch(23.98, 48.63, 293.56°)
OKLab	oklab(35.19% -0.0078 -0.1286)
OKLCH	oklch(35.19% 0.129 266.5)
XYZ	xyz(5.3631, 4.0946, 19.9057)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C337D #7D661C

analogous

#1C647D #1C337D #351C7D

triadic

#1C337D #7D1C33 #337D1C

tetradic

#1C337D #7D1C64 #7D661C #1C7D35

square

#1C337D #7D1C64 #7D661C #1C7D35

split-complementary

#1C337D #7D351C #647D1C

monochromatic

#060A19 #111F4B #1C337D #2747AF #3F63D4

Accessibility & contrast

On white

11.54

#1C337D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#1C337D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C337D

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C337D	#FFFFFF	#000000	##FFFFFF
##1C337D	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E80

Deuteranopia (green-blind)

#00357C

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c337d;
/* rgb */ color: rgb(28, 51, 125);
/* oklch */ color: oklch(35.2% 0.129 266.5);

Tailwind

colors: {
  custom: {
    50: '#686aa3',
    500: '#1c337d',
    950: '#000000',
  },
}

SCSS

$custom: #1c337d;
$custom-light: #686aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1c337d",
  "rgb": {
    "r": 28,
    "g": 51,
    "b": 125
  },
  "hsl": {
    "h": 225.773,
    "s": 63.399,
    "l": 30
  },
  "oklch": {
    "l": 0.3519,
    "c": 0.12885,
    "h": 266.5
  },
  "luminance": 0.04095
}

Semantic roles & 50–950 ramp

primary

#1C337D

secondary

#B19744

accent

#BF41E6

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1C337D

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

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