#1D357E#1D357E

#1D357E is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.8% C 0.127 H 266.2°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D357E
RGB	rgb(29, 53, 126)
HSL	hsl(225, 63%, 30%)
HSV	hsv(225, 77%, 49%)
CMYK	cmyk(77%, 57.9%, 0%, 50.6%)
CIE-LAB	lab(24.68, 18.56, -44.07)
CIE-LCH	lch(24.68, 47.82, 292.84°)
OKLab	oklab(35.75% -0.0084 -0.1271)
OKLCH	oklch(35.75% 0.127 266.2)
XYZ	xyz(5.5444, 4.3132, 20.2749)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D357E #7E661D

analogous

#1D657E #1D357E #361D7E

triadic

#1D357E #7E1D35 #357E1D

tetradic

#1D357E #7E1D65 #7E661D #1D7E36

square

#1D357E #7E1D65 #7E661D #1D7E36

split-complementary

#1D357E #7E361D #657E1D

monochromatic

#060B1B #12204C #1D357E #284AB0 #4266D3

Accessibility & contrast

On white

11.27

#1D357E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1D357E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D357E

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D357E	#FFFFFF	#000000	##FFFFFF
##1D357E	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F81

Deuteranopia (green-blind)

#00367D

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1d357e;
/* rgb */ color: rgb(29, 53, 126);
/* oklch */ color: oklch(35.8% 0.127 266.2);

Tailwind

colors: {
  custom: {
    50: '#686ba4',
    500: '#1d357e',
    950: '#000000',
  },
}

SCSS

$custom: #1d357e;
$custom-light: #686ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d357e",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 126
  },
  "hsl": {
    "h": 225.155,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.35753,
    "c": 0.12734,
    "h": 266.2
  },
  "luminance": 0.04314
}

Semantic roles & 50–950 ramp

primary

#1D357E

secondary

#B19745

accent

#BD42E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1D357E

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

Preview Lab → · Contrast checker → · Palette generator →