#1B235E#1B235E

#1B235E is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.9% C 0.105 H 272.2°. Best body text is #FFFFFF at 14.50:1 contrast (WCAG AA passes).

Color values

HEX	#1B235E
RGB	rgb(27, 35, 94)
HSL	hsl(233, 55%, 24%)
HSV	hsv(233, 71%, 37%)
CMYK	cmyk(71.3%, 62.8%, 0%, 63.1%)
CIE-LAB	lab(16.71, 18.27, -36.34)
CIE-LCH	lch(16.71, 40.68, 296.69°)
OKLab	oklab(28.92% 0.0041 -0.1047)
OKLCH	oklch(28.92% 0.105 272.2)
XYZ	xyz(3.0727, 2.2429, 10.8585)
Luminance	0.0224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B235E #5E561B

analogous

#1B445E #1B235E #341B5E

triadic

#1B235E #5E1B23 #235E1B

tetradic

#1B235E #5E1B44 #5E561B #1B5E34

square

#1B235E #5E1B44 #5E561B #1B5E34

split-complementary

#1B235E #5E341B #445E1B

monochromatic

#070918 #0D112E #1B235E #29358E #3646BD

Accessibility & contrast

On white

14.50

#1B235E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1B235E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B235E

14.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B235E	#FFFFFF	#000000	##FFFFFF
##1B235E	1.00	14.50	1.45	14.50
#FFFFFF	14.50	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C60

Deuteranopia (green-blind)

#00265D

Tritanopia (blue-blind)

#00323C

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1b235e;
/* rgb */ color: rgb(27, 35, 94);
/* oklch */ color: oklch(28.9% 0.105 272.2);

Tailwind

colors: {
  custom: {
    50: '#615d8c',
    500: '#1b235e',
    950: '#000000',
  },
}

SCSS

$custom: #1b235e;
$custom-light: #615d8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b235e",
  "rgb": {
    "r": 27,
    "g": 35,
    "b": 94
  },
  "hsl": {
    "h": 232.836,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.28917,
    "c": 0.10475,
    "h": 272.2
  },
  "luminance": 0.02243
}

Semantic roles & 50–950 ramp

primary

#1B235E

secondary

#948A41

accent

#CD49DF

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1B235E

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

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