#1D236F#1D236F

#1D236F is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.7% C 0.129 H 272.5°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#1D236F
RGB	rgb(29, 35, 111)
HSL	hsl(236, 59%, 27%)
HSV	hsv(236, 74%, 44%)
CMYK	cmyk(73.9%, 68.5%, 0%, 56.5%)
CIE-LAB	lab(18.41, 25.24, -44.72)
CIE-LCH	lch(18.41, 51.35, 299.45°)
OKLab	oklab(30.69% 0.0058 -0.1292)
OKLCH	oklch(30.69% 0.129 272.5)
XYZ	xyz(3.9760, 2.6106, 15.3302)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D236F #6F691D

analogous

#1D4C6F #1D236F #401D6F

triadic

#1D236F #6F1D23 #236F1D

tetradic

#1D236F #6F1D4C #6F691D #1D6F40

square

#1D236F #6F1D4C #6F691D #1D6F40

split-complementary

#1D236F #6F401D #4C6F1D

monochromatic

#060818 #10143E #1D236F #2A32A0 #3B45CC

Accessibility & contrast

On white

13.80

#1D236F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1D236F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D236F

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D236F	#FFFFFF	#000000	##FFFFFF
##1D236F	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003171

Deuteranopia (green-blind)

#00296E

Tritanopia (blue-blind)

#003745

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d236f;
/* rgb */ color: rgb(29, 35, 111);
/* oklch */ color: oklch(30.7% 0.129 272.5);

Tailwind

colors: {
  custom: {
    50: '#665e99',
    500: '#1d236f',
    950: '#000000',
  },
}

SCSS

$custom: #1d236f;
$custom-light: #665e99;
$custom-dark: #000000;

JSON

{
  "hex": "#1d236f",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 111
  },
  "hsl": {
    "h": 235.61,
    "s": 58.571,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30689,
    "c": 0.12931,
    "h": 272.5
  },
  "luminance": 0.02611
}

Semantic roles & 50–950 ramp

primary

#1D236F

secondary

#A39C44

accent

#D646E2

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1D236F

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

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