#1F286D#1F286D

#1F286D is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.6% C 0.119 H 272.0°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#1F286D
RGB	rgb(31, 40, 109)
HSL	hsl(233, 56%, 27%)
HSV	hsv(233, 72%, 43%)
CMYK	cmyk(71.6%, 63.3%, 0%, 57.3%)
CIE-LAB	lab(19.69, 21.28, -41.33)
CIE-LCH	lch(19.69, 46.48, 297.24°)
OKLab	oklab(31.61% 0.0042 -0.1191)
OKLCH	oklch(31.61% 0.119 272)
XYZ	xyz(4.0833, 2.9126, 14.8120)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F286D #6D641F

analogous

#1F4F6D #1F286D #3D1F6D

triadic

#1F286D #6D1F28 #286D1F

tetradic

#1F286D #6D1F4F #6D641F #1F6D3D

square

#1F286D #6D1F4F #6D641F #1F6D3D

split-complementary

#1F286D #6D3D1F #4F6D1F

monochromatic

#070918 #11173D #1F286D #2D399D #3E4EC8

Accessibility & contrast

On white

13.27

#1F286D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1F286D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F286D

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F286D	#FFFFFF	#000000	##FFFFFF
##1F286D	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336F

Deuteranopia (green-blind)

#002C6C

Tritanopia (blue-blind)

#003946

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1f286d;
/* rgb */ color: rgb(31, 40, 109);
/* oklch */ color: oklch(31.6% 0.119 272.0);

Tailwind

colors: {
  custom: {
    50: '#666197',
    500: '#1f286d',
    950: '#000000',
  },
}

SCSS

$custom: #1f286d;
$custom-light: #666197;
$custom-dark: #000000;

JSON

{
  "hex": "#1f286d",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 109
  },
  "hsl": {
    "h": 233.077,
    "s": 55.714,
    "l": 27.451
  },
  "oklch": {
    "l": 0.31606,
    "c": 0.11921,
    "h": 272
  },
  "luminance": 0.02913
}

Semantic roles & 50–950 ramp

primary

#1F286D

secondary

#A19747

accent

#CE49DF

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1F286D

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

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