#1F2F63#1F2F63

#1F2F63 is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.3% C 0.094 H 268.0°. Best body text is #FFFFFF at 12.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F2F63
RGB	rgb(31, 47, 99)
HSL	hsl(226, 52%, 25%)
HSV	hsv(226, 69%, 39%)
CMYK	cmyk(68.7%, 52.5%, 0%, 61.2%)
CIE-LAB	lab(20.92, 12.31, -32.82)
CIE-LCH	lch(20.92, 35.05, 290.56°)
OKLab	oklab(32.28% -0.0033 -0.094)
OKLCH	oklch(32.28% 0.094 268)
XYZ	xyz(3.8329, 3.2248, 12.2224)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2F63 #63531F

analogous

#1F5163 #1F2F63 #311F63

triadic

#1F2F63 #631F2F #2F631F

tetradic

#1F2F63 #631F51 #63531F #1F6331

square

#1F2F63 #631F51 #63531F #1F6331

split-complementary

#1F2F63 #63311F #51631F

monochromatic

#070B17 #101934 #1F2F63 #2E4592 #3C5BC0

Accessibility & contrast

On white

12.77

#1F2F63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1F2F63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2F63

12.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2F63	#FFFFFF	#000000	##FFFFFF
##1F2F63	1.00	12.77	1.65	12.77
#FFFFFF	12.77	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133665

Deuteranopia (green-blind)

#032F62

Tritanopia (blue-blind)

#003B44

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1f2f63;
/* rgb */ color: rgb(31, 47, 99);
/* oklch */ color: oklch(32.3% 0.094 268.0);

Tailwind

colors: {
  custom: {
    50: '#636790',
    500: '#1f2f63',
    950: '#000000',
  },
}

SCSS

$custom: #1f2f63;
$custom-light: #636790;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2f63",
  "rgb": {
    "r": 31,
    "g": 47,
    "b": 99
  },
  "hsl": {
    "h": 225.882,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.32277,
    "c": 0.09408,
    "h": 268
  },
  "luminance": 0.03225
}

Semantic roles & 50–950 ramp

primary

#1F2F63

secondary

#988446

accent

#BA4CDC

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060C

muted

#7A7A7D

Preview Lab

Preview with #1F2F63

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

Preview Lab → · Contrast checker → · Palette generator →