#1D4285#1D4285

#1D4285 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.2% C 0.120 H 261.1°. Best body text is #FFFFFF at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#1D4285
RGB	rgb(29, 66, 133)
HSL	hsl(219, 64%, 32%)
HSV	hsv(219, 78%, 52%)
CMYK	cmyk(78.2%, 50.4%, 0%, 47.8%)
CIE-LAB	lab(29.03, 12.31, -41.41)
CIE-LCH	lch(29.03, 43.20, 286.56°)
OKLab	oklab(39.23% -0.0186 -0.119)
OKLCH	oklch(39.23% 0.12 261.1)
XYZ	xyz(6.6870, 5.8503, 22.9626)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4285 #85601D

analogous

#1D7685 #1D4285 #2C1D85

triadic

#1D4285 #851D42 #42851D

tetradic

#1D4285 #851D76 #85601D #1D852C

square

#1D4285 #851D76 #85601D #1D852C

split-complementary

#1D4285 #852C1D #76851D

monochromatic

#071021 #122953 #1D4285 #285BB7 #4679D7

Accessibility & contrast

On white

9.68

#1D4285 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#1D4285 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4285

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4285	#FFFFFF	#000000	##FFFFFF
##1D4285	1.00	9.68	2.17	9.68
#FFFFFF	9.68	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4987

Deuteranopia (green-blind)

#004084

Tritanopia (blue-blind)

#00525D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d4285;
/* rgb */ color: rgb(29, 66, 133);
/* oklch */ color: oklch(39.2% 0.120 261.1);

Tailwind

colors: {
  custom: {
    50: '#6975a9',
    500: '#1d4285',
    950: '#000000',
  },
}

SCSS

$custom: #1d4285;
$custom-light: #6975a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4285",
  "rgb": {
    "r": 29,
    "g": 66,
    "b": 133
  },
  "hsl": {
    "h": 218.654,
    "s": 64.198,
    "l": 31.765
  },
  "oklch": {
    "l": 0.39226,
    "c": 0.12043,
    "h": 261.1
  },
  "luminance": 0.05851
}

Semantic roles & 50–950 ramp

primary

#1D4285

secondary

#B88F46

accent

#AC41E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4285

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

Preview Lab → · Contrast checker → · Palette generator →