#1D276F#1D276F

#1D276F is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.5% C 0.124 H 271.2°. Best body text is #FFFFFF at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D276F
RGB	rgb(29, 39, 111)
HSL	hsl(233, 59%, 27%)
HSV	hsv(233, 74%, 44%)
CMYK	cmyk(73.9%, 64.9%, 0%, 56.5%)
CIE-LAB	lab(19.47, 22.46, -42.98)
CIE-LCH	lch(19.47, 48.50, 297.59°)
OKLab	oklab(31.47% 0.0026 -0.1241)
OKLCH	oklch(31.47% 0.124 271.2)
XYZ	xyz(4.1005, 2.8595, 15.3717)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D276F #6F651D

analogous

#1D506F #1D276F #3C1D6F

triadic

#1D276F #6F1D27 #276F1D

tetradic

#1D276F #6F1D50 #6F651D #1D6F3C

square

#1D276F #6F1D50 #6F651D #1D6F3C

split-complementary

#1D276F #6F3C1D #506F1D

monochromatic

#060918 #10163E #1D276F #2A38A0 #3B4CCC

Accessibility & contrast

On white

13.36

#1D276F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1D276F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D276F

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D276F	#FFFFFF	#000000	##FFFFFF
##1D276F	1.00	13.36	1.57	13.36
#FFFFFF	13.36	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003371

Deuteranopia (green-blind)

#002B6E

Tritanopia (blue-blind)

#003947

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d276f;
/* rgb */ color: rgb(29, 39, 111);
/* oklch */ color: oklch(31.5% 0.124 271.2);

Tailwind

colors: {
  custom: {
    50: '#666199',
    500: '#1d276f',
    950: '#000000',
  },
}

SCSS

$custom: #1d276f;
$custom-light: #666199;
$custom-dark: #000000;

JSON

{
  "hex": "#1d276f",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 111
  },
  "hsl": {
    "h": 232.683,
    "s": 58.571,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31468,
    "c": 0.12409,
    "h": 271.2
  },
  "luminance": 0.0286
}

Semantic roles & 50–950 ramp

primary

#1D276F

secondary

#A39844

accent

#CF46E2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1D276F

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

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