#1D4287#1D4287

#1D4287 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.4% C 0.123 H 261.5°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#1D4287
RGB	rgb(29, 66, 135)
HSL	hsl(219, 65%, 32%)
HSV	hsv(219, 79%, 53%)
CMYK	cmyk(78.5%, 51.1%, 0%, 47.1%)
CIE-LAB	lab(29.17, 13.12, -42.42)
CIE-LCH	lch(29.17, 44.40, 287.19°)
OKLab	oklab(39.38% -0.0183 -0.1219)
OKLCH	oklch(39.38% 0.123 261.5)
XYZ	xyz(6.8265, 5.9061, 23.6972)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4287 #87621D

analogous

#1D7787 #1D4287 #2D1D87

triadic

#1D4287 #871D42 #42871D

tetradic

#1D4287 #871D77 #87621D #1D872D

square

#1D4287 #871D77 #87621D #1D872D

split-complementary

#1D4287 #872D1D #77871D

monochromatic

#071122 #122955 #1D4287 #285BB9 #4779D7

Accessibility & contrast

On white

9.63

#1D4287 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#1D4287 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4287

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4287	#FFFFFF	#000000	##FFFFFF
##1D4287	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194A8A

Deuteranopia (green-blind)

#004086

Tritanopia (blue-blind)

#00535E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d4287;
/* rgb */ color: rgb(29, 66, 135);
/* oklch */ color: oklch(39.4% 0.123 261.5);

Tailwind

colors: {
  custom: {
    50: '#6a75aa',
    500: '#1d4287',
    950: '#000000',
  },
}

SCSS

$custom: #1d4287;
$custom-light: #6a75aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4287",
  "rgb": {
    "r": 29,
    "g": 66,
    "b": 135
  },
  "hsl": {
    "h": 219.057,
    "s": 64.634,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39381,
    "c": 0.12332,
    "h": 261.5
  },
  "luminance": 0.05907
}

Semantic roles & 50–950 ramp

primary

#1D4287

secondary

#B99146

accent

#AD40E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4287

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

Preview Lab → · Contrast checker → · Palette generator →