#1F2D88#1F2D88

#1F2D88 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.151 H 269.7°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F2D88
RGB	rgb(31, 45, 136)
HSL	hsl(232, 63%, 33%)
HSV	hsv(232, 77%, 53%)
CMYK	cmyk(77.2%, 66.9%, 0%, 46.7%)
CIE-LAB	lab(23.49, 28.28, -52.28)
CIE-LCH	lch(23.49, 59.44, 298.40°)
OKLab	oklab(35.17% -0.0007 -0.1512)
OKLCH	oklch(35.17% 0.151 269.7)
XYZ	xyz(5.9459, 3.9450, 23.7359)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2D88 #887A1F

analogous

#1F6188 #1F2D88 #451F88

triadic

#1F2D88 #881F2D #2D881F

tetradic

#1F2D88 #881F61 #887A1F #1F8845

square

#1F2D88 #881F61 #887A1F #1F8845

split-complementary

#1F2D88 #88451F #61881F

monochromatic

#080C24 #141D56 #1F2D88 #2A3DBA #4B5ED6

Accessibility & contrast

On white

11.74

#1F2D88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1F2D88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2D88

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2D88	#FFFFFF	#000000	##FFFFFF
##1F2D88	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8B

Deuteranopia (green-blind)

#003386

Tritanopia (blue-blind)

#004556

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f2d88;
/* rgb */ color: rgb(31, 45, 136);
/* oklch */ color: oklch(35.2% 0.151 269.7);

Tailwind

colors: {
  custom: {
    50: '#6c66ac',
    500: '#1f2d88',
    950: '#000000',
  },
}

SCSS

$custom: #1f2d88;
$custom-light: #6c66ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2d88",
  "rgb": {
    "r": 31,
    "g": 45,
    "b": 136
  },
  "hsl": {
    "h": 232,
    "s": 62.874,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35168,
    "c": 0.15122,
    "h": 269.7
  },
  "luminance": 0.03946
}

Semantic roles & 50–950 ramp

primary

#1F2D88

secondary

#B9AA4A

accent

#D042E6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1F2D88

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

Preview Lab → · Contrast checker → · Palette generator →