#1F3261#1F3261

#1F3261 is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.8% C 0.087 H 265.4°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#1F3261
RGB	rgb(31, 50, 97)
HSL	hsl(223, 52%, 25%)
HSV	hsv(223, 68%, 38%)
CMYK	cmyk(68%, 48.5%, 0%, 62%)
CIE-LAB	lab(21.71, 9.37, -30.25)
CIE-LCH	lch(21.71, 31.66, 287.20°)
OKLab	oklab(32.83% -0.007 -0.0864)
OKLCH	oklch(32.83% 0.087 265.4)
XYZ	xyz(3.8626, 3.4352, 11.7665)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3261 #614E1F

analogous

#1F5361 #1F3261 #2D1F61

triadic

#1F3261 #611F32 #32611F

tetradic

#1F3261 #611F53 #614E1F #1F612D

square

#1F3261 #611F53 #614E1F #1F612D

split-complementary

#1F3261 #612D1F #53611F

monochromatic

#070C17 #101A33 #1F3261 #2E4A8F #3D62BE

Accessibility & contrast

On white

12.45

#1F3261 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1F3261 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3261

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3261	#FFFFFF	#000000	##FFFFFF
##1F3261	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3763

Deuteranopia (green-blind)

#103160

Tritanopia (blue-blind)

#003D44

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1f3261;
/* rgb */ color: rgb(31, 50, 97);
/* oklch */ color: oklch(32.8% 0.087 265.4);

Tailwind

colors: {
  custom: {
    50: '#62698e',
    500: '#1f3261',
    950: '#000000',
  },
}

SCSS

$custom: #1f3261;
$custom-light: #62698e;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3261",
  "rgb": {
    "r": 31,
    "g": 50,
    "b": 97
  },
  "hsl": {
    "h": 222.727,
    "s": 51.563,
    "l": 25.098
  },
  "oklch": {
    "l": 0.32832,
    "c": 0.08669,
    "h": 265.4
  },
  "luminance": 0.03436
}

Semantic roles & 50–950 ramp

primary

#1F3261

secondary

#967F46

accent

#B24DDB

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060C

muted

#7A7A7D

Preview Lab

Preview with #1F3261

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

Preview Lab → · Contrast checker → · Palette generator →