#1F2C88#1F2C88

#1F2C88 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.0% C 0.152 H 270.0°. Best body text is #FFFFFF at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#1F2C88
RGB	rgb(31, 44, 136)
HSL	hsl(233, 63%, 33%)
HSV	hsv(233, 77%, 53%)
CMYK	cmyk(77.2%, 67.6%, 0%, 46.7%)
CIE-LAB	lab(23.24, 28.95, -52.70)
CIE-LCH	lch(23.24, 60.13, 298.78°)
OKLab	oklab(34.98% -0.0001 -0.1524)
OKLCH	oklch(34.98% 0.152 270)
XYZ	xyz(5.9082, 3.8696, 23.7233)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2C88 #887B1F

analogous

#1F6188 #1F2C88 #461F88

triadic

#1F2C88 #881F2C #2C881F

tetradic

#1F2C88 #881F61 #887B1F #1F8846

square

#1F2C88 #881F61 #887B1F #1F8846

split-complementary

#1F2C88 #88461F #61881F

monochromatic

#080C24 #141C56 #1F2C88 #2A3CBA #4B5DD6

Accessibility & contrast

On white

11.84

#1F2C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1F2C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2C88

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2C88	#FFFFFF	#000000	##FFFFFF
##1F2C88	1.00	11.84	1.77	11.84
#FFFFFF	11.84	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8B

Deuteranopia (green-blind)

#003286

Tritanopia (blue-blind)

#004556

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f2c88;
/* rgb */ color: rgb(31, 44, 136);
/* oklch */ color: oklch(35.0% 0.152 270.0);

Tailwind

colors: {
  custom: {
    50: '#6c65ac',
    500: '#1f2c88',
    950: '#000000',
  },
}

SCSS

$custom: #1f2c88;
$custom-light: #6c65ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2c88",
  "rgb": {
    "r": 31,
    "g": 44,
    "b": 136
  },
  "hsl": {
    "h": 232.571,
    "s": 62.874,
    "l": 32.745
  },
  "oklch": {
    "l": 0.34983,
    "c": 0.15244,
    "h": 270
  },
  "luminance": 0.0387
}

Semantic roles & 50–950 ramp

primary

#1F2C88

secondary

#B9AB4A

accent

#D242E6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1F2C88

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

Preview Lab → · Contrast checker → · Palette generator →