#1C4397#1C4397

#1C4397 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.9% C 0.145 H 262.9°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#1C4397
RGB	rgb(28, 67, 151)
HSL	hsl(221, 69%, 35%)
HSV	hsv(221, 81%, 59%)
CMYK	cmyk(81.5%, 55.6%, 0%, 40.8%)
CIE-LAB	lab(30.63, 18.78, -49.89)
CIE-LCH	lch(30.63, 53.31, 290.63°)
OKLab	oklab(40.86% -0.0179 -0.1439)
OKLCH	oklch(40.86% 0.145 262.9)
XYZ	xyz(8.0700, 6.4946, 30.1004)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C4397 #97701C

analogous

#1C8097 #1C4397 #331C97

triadic

#1C4397 #971C43 #43971C

tetradic

#1C4397 #971C80 #97701C #1C9733

square

#1C4397 #971C80 #97701C #1C9733

split-complementary

#1C4397 #97331C #80971C

monochromatic

#091530 #122C63 #1C4397 #265ACB #4F7CDE

Accessibility & contrast

On white

9.13

#1C4397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1C4397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C4397

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C4397	#FFFFFF	#000000	##FFFFFF
##1C4397	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9A

Deuteranopia (green-blind)

#004395

Tritanopia (blue-blind)

#005866

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1c4397;
/* rgb */ color: rgb(28, 67, 151);
/* oklch */ color: oklch(40.9% 0.145 262.9);

Tailwind

colors: {
  custom: {
    50: '#6e76b6',
    500: '#1c4397',
    950: '#000000',
  },
}

SCSS

$custom: #1c4397;
$custom-light: #6e76b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c4397",
  "rgb": {
    "r": 28,
    "g": 67,
    "b": 151
  },
  "hsl": {
    "h": 220.976,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.40856,
    "c": 0.14506,
    "h": 262.9
  },
  "luminance": 0.06496
}

Semantic roles & 50–950 ramp

primary

#1C4397

secondary

#C19C4E

accent

#B43CEC

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1C4397

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

Preview Lab → · Contrast checker → · Palette generator →