#1C3797#1C3797

#1C3797 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.4% C 0.160 H 266.4°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#1C3797
RGB	rgb(28, 55, 151)
HSL	hsl(227, 69%, 35%)
HSV	hsv(227, 81%, 59%)
CMYK	cmyk(81.5%, 63.6%, 0%, 40.8%)
CIE-LAB	lab(27.33, 27.00, -55.27)
CIE-LCH	lch(27.33, 61.51, 296.04°)
OKLab	oklab(38.39% -0.0101 -0.1599)
OKLCH	oklch(38.39% 0.16 266.4)
XYZ	xyz(7.4290, 5.2127, 29.8868)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C3797 #977C1C

analogous

#1C7597 #1C3797 #3E1C97

triadic

#1C3797 #971C37 #37971C

tetradic

#1C3797 #971C75 #977C1C #1C973E

square

#1C3797 #971C75 #977C1C #1C973E

split-complementary

#1C3797 #973E1C #75971C

monochromatic

#091130 #122463 #1C3797 #264ACB #4F6EDE

Accessibility & contrast

On white

10.28

#1C3797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1C3797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C3797

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C3797	#FFFFFF	#000000	##FFFFFF
##1C3797	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469A

Deuteranopia (green-blind)

#003B95

Tritanopia (blue-blind)

#005061

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1c3797;
/* rgb */ color: rgb(28, 55, 151);
/* oklch */ color: oklch(38.4% 0.160 266.4);

Tailwind

colors: {
  custom: {
    50: '#6e6db6',
    500: '#1c3797',
    950: '#000000',
  },
}

SCSS

$custom: #1c3797;
$custom-light: #6e6db6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c3797",
  "rgb": {
    "r": 28,
    "g": 55,
    "b": 151
  },
  "hsl": {
    "h": 226.829,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38388,
    "c": 0.16023,
    "h": 266.4
  },
  "luminance": 0.05214
}

Semantic roles & 50–950 ramp

primary

#1C3797

secondary

#C1A84E

accent

#C53CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #1C3797

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

Preview Lab → · Contrast checker → · Palette generator →