#1D276D#1D276D

#1D276D is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.3% C 0.121 H 271.3°. Best body text is #FFFFFF at 13.43:1 contrast (WCAG AA passes).

Color values

HEX	#1D276D
RGB	rgb(29, 39, 109)
HSL	hsl(233, 58%, 27%)
HSV	hsv(233, 73%, 43%)
CMYK	cmyk(73.4%, 64.2%, 0%, 57.3%)
CIE-LAB	lab(19.29, 21.68, -41.98)
CIE-LCH	lch(19.29, 47.25, 297.31°)
OKLab	oklab(31.28% 0.0027 -0.1211)
OKLCH	oklch(31.28% 0.121 271.3)
XYZ	xyz(3.9916, 2.8160, 14.7982)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D276D #6D631D

analogous

#1D4F6D #1D276D #3B1D6D

triadic

#1D276D #6D1D27 #276D1D

tetradic

#1D276D #6D1D4F #6D631D #1D6D3B

square

#1D276D #6D1D4F #6D631D #1D6D3B

split-complementary

#1D276D #6D3B1D #4F6D1D

monochromatic

#060918 #10163D #1D276D #2A389D #3A4CCB

Accessibility & contrast

On white

13.43

#1D276D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1D276D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D276D

13.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D276D	#FFFFFF	#000000	##FFFFFF
##1D276D	1.00	13.43	1.56	13.43
#FFFFFF	13.43	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336F

Deuteranopia (green-blind)

#002B6C

Tritanopia (blue-blind)

#003946

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d276d;
/* rgb */ color: rgb(29, 39, 109);
/* oklch */ color: oklch(31.3% 0.121 271.3);

Tailwind

colors: {
  custom: {
    50: '#656198',
    500: '#1d276d',
    950: '#000000',
  },
}

SCSS

$custom: #1d276d;
$custom-light: #656198;
$custom-dark: #000000;

JSON

{
  "hex": "#1d276d",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 109
  },
  "hsl": {
    "h": 232.5,
    "s": 57.971,
    "l": 27.059
  },
  "oklch": {
    "l": 0.31278,
    "c": 0.12116,
    "h": 271.3
  },
  "luminance": 0.02816
}

Semantic roles & 50–950 ramp

primary

#1D276D

secondary

#A29644

accent

#CE47E1

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1D276D

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

Preview Lab → · Contrast checker → · Palette generator →