#1F2585#1F2585

#1F2585 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.4% C 0.157 H 271.6°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F2585
RGB	rgb(31, 37, 133)
HSL	hsl(236, 62%, 32%)
HSV	hsv(236, 77%, 52%)
CMYK	cmyk(76.7%, 72.2%, 0%, 47.8%)
CIE-LAB	lab(21.23, 32.42, -54.11)
CIE-LCH	lch(21.23, 63.07, 300.93°)
OKLab	oklab(33.44% 0.0044 -0.1566)
OKLCH	oklch(33.44% 0.157 271.6)
XYZ	xyz(5.4588, 3.3073, 22.5364)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2585 #857F1F

analogous

#1F5885 #1F2585 #4C1F85

triadic

#1F2585 #851F25 #25851F

tetradic

#1F2585 #851F58 #857F1F #1F854C

square

#1F2585 #851F58 #857F1F #1F854C

split-complementary

#1F2585 #854C1F #58851F

monochromatic

#080922 #131753 #1F2585 #2B33B7 #4A52D5

Accessibility & contrast

On white

12.64

#1F2585 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1F2585 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2585

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2585	#FFFFFF	#000000	##FFFFFF
##1F2585	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003888

Deuteranopia (green-blind)

#002E83

Tritanopia (blue-blind)

#004052

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1f2585;
/* rgb */ color: rgb(31, 37, 133);
/* oklch */ color: oklch(33.4% 0.157 271.6);

Tailwind

colors: {
  custom: {
    50: '#6c60aa',
    500: '#1f2585',
    950: '#000000',
  },
}

SCSS

$custom: #1f2585;
$custom-light: #6c60aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2585",
  "rgb": {
    "r": 31,
    "g": 37,
    "b": 133
  },
  "hsl": {
    "h": 236.471,
    "s": 62.195,
    "l": 32.157
  },
  "oklch": {
    "l": 0.3344,
    "c": 0.15663,
    "h": 271.6
  },
  "luminance": 0.03308
}

Semantic roles & 50–950 ramp

primary

#1F2585

secondary

#B7B149

accent

#DC43E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080510

muted

#7B797F

Preview Lab

Preview with #1F2585

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

Preview Lab → · Contrast checker → · Palette generator →