#1F3885#1F3885

#1F3885 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.1% C 0.133 H 266.3°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#1F3885
RGB	rgb(31, 56, 133)
HSL	hsl(225, 62%, 32%)
HSV	hsv(225, 77%, 52%)
CMYK	cmyk(76.7%, 57.9%, 0%, 47.8%)
CIE-LAB	lab(26.19, 19.53, -46.00)
CIE-LCH	lch(26.19, 49.97, 293.01°)
OKLab	oklab(37.09% -0.0086 -0.1326)
OKLCH	oklch(37.09% 0.133 266.3)
XYZ	xyz(6.2114, 4.8124, 22.7873)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F3885 #856C1F

analogous

#1F6B85 #1F3885 #391F85

triadic

#1F3885 #851F38 #38851F

tetradic

#1F3885 #851F6B #856C1F #1F8539

square

#1F3885 #851F6B #856C1F #1F8539

split-complementary

#1F3885 #85391F #6B851F

monochromatic

#080E22 #132353 #1F3885 #2B4DB7 #4A6CD5

Accessibility & contrast

On white

10.70

#1F3885 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#1F3885 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F3885

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F3885	#FFFFFF	#000000	##FFFFFF
##1F3885	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004388

Deuteranopia (green-blind)

#003983

Tritanopia (blue-blind)

#004B58

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f3885;
/* rgb */ color: rgb(31, 56, 133);
/* oklch */ color: oklch(37.1% 0.133 266.3);

Tailwind

colors: {
  custom: {
    50: '#6b6ea9',
    500: '#1f3885',
    950: '#000000',
  },
}

SCSS

$custom: #1f3885;
$custom-light: #6b6ea9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f3885",
  "rgb": {
    "r": 31,
    "g": 56,
    "b": 133
  },
  "hsl": {
    "h": 225.294,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37094,
    "c": 0.13291,
    "h": 266.3
  },
  "luminance": 0.04813
}

Semantic roles & 50–950 ramp

primary

#1F3885

secondary

#B79C49

accent

#BD43E5

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1F3885

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

Preview Lab → · Contrast checker → · Palette generator →