#1F2863#1F2863

#1F2863 is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.7% C 0.104 H 272.2°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#1F2863
RGB	rgb(31, 40, 99)
HSL	hsl(232, 52%, 25%)
HSV	hsv(232, 69%, 39%)
CMYK	cmyk(68.7%, 59.6%, 0%, 61.2%)
CIE-LAB	lab(18.84, 17.36, -36.18)
CIE-LCH	lch(18.84, 40.13, 295.63°)
OKLab	oklab(30.71% 0.004 -0.104)
OKLCH	oklch(30.71% 0.104 272.2)
XYZ	xyz(3.5752, 2.7094, 12.1365)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2863 #635A1F

analogous

#1F4A63 #1F2863 #381F63

triadic

#1F2863 #631F28 #28631F

tetradic

#1F2863 #631F4A #635A1F #1F6338

square

#1F2863 #631F4A #635A1F #1F6338

split-complementary

#1F2863 #63381F #4A631F

monochromatic

#070917 #101534 #1F2863 #2E3B92 #3C4EC0

Accessibility & contrast

On white

13.62

#1F2863 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1F2863 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2863

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2863	#FFFFFF	#000000	##FFFFFF
##1F2863	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003165

Deuteranopia (green-blind)

#002B62

Tritanopia (blue-blind)

#003641

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f2863;
/* rgb */ color: rgb(31, 40, 99);
/* oklch */ color: oklch(30.7% 0.104 272.2);

Tailwind

colors: {
  custom: {
    50: '#636190',
    500: '#1f2863',
    950: '#000000',
  },
}

SCSS

$custom: #1f2863;
$custom-light: #636190;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2863",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 99
  },
  "hsl": {
    "h": 232.059,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.30707,
    "c": 0.1041,
    "h": 272.2
  },
  "luminance": 0.0271
}

Semantic roles & 50–950 ramp

primary

#1F2863

secondary

#988D46

accent

#C94CDC

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06050C

muted

#7A797D

Preview Lab

Preview with #1F2863

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

Preview Lab → · Contrast checker → · Palette generator →