#1D276E#1D276E

#1D276E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.4% C 0.123 H 271.2°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#1D276E
RGB	rgb(29, 39, 110)
HSL	hsl(233, 58%, 27%)
HSV	hsv(233, 74%, 43%)
CMYK	cmyk(73.6%, 64.5%, 0%, 56.9%)
CIE-LAB	lab(19.38, 22.07, -42.48)
CIE-LCH	lch(19.38, 47.87, 297.45°)
OKLab	oklab(31.37% 0.0027 -0.1226)
OKLCH	oklch(31.37% 0.123 271.2)
XYZ	xyz(4.0457, 2.8376, 15.0833)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D276E #6E641D

analogous

#1D4F6E #1D276E #3C1D6E

triadic

#1D276E #6E1D27 #276E1D

tetradic

#1D276E #6E1D4F #6E641D #1D6E3C

square

#1D276E #6E1D4F #6E641D #1D6E3C

split-complementary

#1D276E #6E3C1D #4F6E1D

monochromatic

#060918 #10163E #1D276E #2A389E #3A4CCB

Accessibility & contrast

On white

13.40

#1D276E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1D276E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D276E

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D276E	#FFFFFF	#000000	##FFFFFF
##1D276E	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003370

Deuteranopia (green-blind)

#002B6D

Tritanopia (blue-blind)

#003946

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d276e;
/* rgb */ color: rgb(29, 39, 110);
/* oklch */ color: oklch(31.4% 0.123 271.2);

Tailwind

colors: {
  custom: {
    50: '#656198',
    500: '#1d276e',
    950: '#000000',
  },
}

SCSS

$custom: #1d276e;
$custom-light: #656198;
$custom-dark: #000000;

JSON

{
  "hex": "#1d276e",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 110
  },
  "hsl": {
    "h": 232.593,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.31372,
    "c": 0.12263,
    "h": 271.2
  },
  "luminance": 0.02838
}

Semantic roles & 50–950 ramp

primary

#1D276E

secondary

#A29744

accent

#CE46E1

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1D276E

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

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