#1D4397#1D4397

#1D4397 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 40.9% C 0.145 H 263.2°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#1D4397
RGB	rgb(29, 67, 151)
HSL	hsl(221, 68%, 35%)
HSV	hsv(221, 81%, 59%)
CMYK	cmyk(80.8%, 55.6%, 0%, 40.8%)
CIE-LAB	lab(30.66, 18.88, -49.84)
CIE-LCH	lch(30.66, 53.30, 290.75°)
OKLab	oklab(40.89% -0.0173 -0.1438)
OKLCH	oklch(40.89% 0.145 263.2)
XYZ	xyz(8.0978, 6.5089, 30.1017)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4397 #97711D

analogous

#1D8097 #1D4397 #341D97

triadic

#1D4397 #971D43 #43971D

tetradic

#1D4397 #971D80 #97711D #1D9734

square

#1D4397 #971D80 #97711D #1D9734

split-complementary

#1D4397 #97341D #80971D

monochromatic

#091530 #132C64 #1D4397 #275ACA #517DDE

Accessibility & contrast

On white

9.12

#1D4397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1D4397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4397

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4397	#FFFFFF	#000000	##FFFFFF
##1D4397	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	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: #1d4397;
/* rgb */ color: rgb(29, 67, 151);
/* oklch */ color: oklch(40.9% 0.145 263.2);

Tailwind

colors: {
  custom: {
    50: '#6e76b6',
    500: '#1d4397',
    950: '#000000',
  },
}

SCSS

$custom: #1d4397;
$custom-light: #6e76b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4397",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 151
  },
  "hsl": {
    "h": 221.311,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.40892,
    "c": 0.1448,
    "h": 263.2
  },
  "luminance": 0.0651
}

Semantic roles & 50–950 ramp

primary

#1D4397

secondary

#C09D4F

accent

#B53DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1D4397

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

Preview Lab → · Contrast checker → · Palette generator →