#1D236E#1D236E

#1D236E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.6% C 0.128 H 272.6°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#1D236E
RGB	rgb(29, 35, 110)
HSL	hsl(236, 58%, 27%)
HSV	hsv(236, 74%, 43%)
CMYK	cmyk(73.6%, 68.2%, 0%, 56.9%)
CIE-LAB	lab(18.32, 24.86, -44.23)
CIE-LCH	lch(18.32, 50.73, 299.34°)
OKLab	oklab(30.59% 0.0058 -0.1277)
OKLCH	oklch(30.59% 0.128 272.6)
XYZ	xyz(3.9213, 2.5887, 15.0418)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D236E #6E681D

analogous

#1D4B6E #1D236E #401D6E

triadic

#1D236E #6E1D23 #236E1D

tetradic

#1D236E #6E1D4B #6E681D #1D6E40

square

#1D236E #6E1D4B #6E681D #1D6E40

split-complementary

#1D236E #6E401D #4B6E1D

monochromatic

#060818 #10143E #1D236E #2A329E #3A45CB

Accessibility & contrast

On white

13.84

#1D236E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1D236E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D236E

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D236E	#FFFFFF	#000000	##FFFFFF
##1D236E	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003070

Deuteranopia (green-blind)

#00296D

Tritanopia (blue-blind)

#003745

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d236e;
/* rgb */ color: rgb(29, 35, 110);
/* oklch */ color: oklch(30.6% 0.128 272.6);

Tailwind

colors: {
  custom: {
    50: '#665e98',
    500: '#1d236e',
    950: '#000000',
  },
}

SCSS

$custom: #1d236e;
$custom-light: #665e98;
$custom-dark: #000000;

JSON

{
  "hex": "#1d236e",
  "rgb": {
    "r": 29,
    "g": 35,
    "b": 110
  },
  "hsl": {
    "h": 235.556,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.30589,
    "c": 0.12787,
    "h": 272.6
  },
  "luminance": 0.02589
}

Semantic roles & 50–950 ramp

primary

#1D236E

secondary

#A29C44

accent

#D646E1

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #1D236E

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

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