#1F2A63#1F2A63

#1F2A63 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.1% C 0.101 H 271.1°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A63
RGB	rgb(31, 42, 99)
HSL	hsl(230, 52%, 25%)
HSV	hsv(230, 69%, 39%)
CMYK	cmyk(68.7%, 57.6%, 0%, 61.2%)
CIE-LAB	lab(19.42, 15.91, -35.24)
CIE-LCH	lch(19.42, 38.66, 294.31°)
OKLab	oklab(31.14% 0.002 -0.1012)
OKLCH	oklch(31.14% 0.101 271.1)
XYZ	xyz(3.6444, 2.8478, 12.1596)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A63 #63581F

analogous

#1F4C63 #1F2A63 #361F63

triadic

#1F2A63 #631F2A #2A631F

tetradic

#1F2A63 #631F4C #63581F #1F6336

square

#1F2A63 #631F4C #63581F #1F6336

split-complementary

#1F2A63 #63361F #4C631F

monochromatic

#070A17 #101634 #1F2A63 #2E3E92 #3C52C0

Accessibility & contrast

On white

13.38

#1F2A63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1F2A63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A63

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A63	#FFFFFF	#000000	##FFFFFF
##1F2A63	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033265

Deuteranopia (green-blind)

#002C62

Tritanopia (blue-blind)

#003842

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1f2a63;
/* rgb */ color: rgb(31, 42, 99);
/* oklch */ color: oklch(31.1% 0.101 271.1);

Tailwind

colors: {
  custom: {
    50: '#636390',
    500: '#1f2a63',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a63;
$custom-light: #636390;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a63",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 99
  },
  "hsl": {
    "h": 230.294,
    "s": 52.308,
    "l": 25.49
  },
  "oklch": {
    "l": 0.31144,
    "c": 0.10123,
    "h": 271.1
  },
  "luminance": 0.02848
}

Semantic roles & 50–950 ramp

primary

#1F2A63

secondary

#988A46

accent

#C44CDC

background

#F6F5F8

surface

#EBEAF0

border

#C6C6CB

text

#06050C

muted

#7A797D

Preview Lab

Preview with #1F2A63

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

Preview Lab → · Contrast checker → · Palette generator →