#1D357D#1D357D

#1D357D is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.7% C 0.126 H 266.1°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#1D357D
RGB	rgb(29, 53, 125)
HSL	hsl(225, 62%, 30%)
HSV	hsv(225, 77%, 49%)
CMYK	cmyk(76.8%, 57.6%, 0%, 51%)
CIE-LAB	lab(24.60, 18.16, -43.57)
CIE-LCH	lch(24.60, 47.20, 292.63°)
OKLab	oklab(35.67% -0.0085 -0.1256)
OKLCH	oklch(35.67% 0.126 266.1)
XYZ	xyz(5.4802, 4.2875, 19.9368)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D357D #7D651D

analogous

#1D657D #1D357D #351D7D

triadic

#1D357D #7D1D35 #357D1D

tetradic

#1D357D #7D1D65 #7D651D #1D7D35

square

#1D357D #7D1D65 #7D651D #1D7D35

split-complementary

#1D357D #7D351D #657D1D

monochromatic

#060B1A #11204B #1D357D #294AAF #4166D3

Accessibility & contrast

On white

11.30

#1D357D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1D357D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D357D

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D357D	#FFFFFF	#000000	##FFFFFF
##1D357D	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7F

Deuteranopia (green-blind)

#00367C

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d357d;
/* rgb */ color: rgb(29, 53, 125);
/* oklch */ color: oklch(35.7% 0.126 266.1);

Tailwind

colors: {
  custom: {
    50: '#686ba3',
    500: '#1d357d',
    950: '#000000',
  },
}

SCSS

$custom: #1d357d;
$custom-light: #686ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d357d",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 125
  },
  "hsl": {
    "h": 225,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.35667,
    "c": 0.12588,
    "h": 266.1
  },
  "luminance": 0.04288
}

Semantic roles & 50–950 ramp

primary

#1D357D

secondary

#B19645

accent

#BD42E5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1D357D

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

Preview Lab → · Contrast checker → · Palette generator →