#1F2490#1F2490

#1F2490 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.5% C 0.172 H 271.1°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#1F2490
RGB	rgb(31, 36, 144)
HSL	hsl(237, 65%, 34%)
HSV	hsv(237, 78%, 56%)
CMYK	cmyk(78.5%, 75%, 0%, 43.5%)
CIE-LAB	lab(22.18, 37.00, -59.42)
CIE-LCH	lch(22.18, 70.00, 301.91°)
OKLab	oklab(34.47% 0.0032 -0.172)
OKLCH	oklch(34.47% 0.172 271.1)
XYZ	xyz(6.2283, 3.5660, 26.7402)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2490 #908B1F

analogous

#1F5D90 #1F2490 #531F90

triadic

#1F2490 #901F24 #24901F

tetradic

#1F2490 #901F5D #908B1F #1F9053

square

#1F2490 #901F5D #908B1F #1F9053

split-complementary

#1F2490 #90531F #5D901F

monochromatic

#090B2B #14175E #1F2490 #2A31C2 #5056D9

Accessibility & contrast

On white

12.26

#1F2490 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1F2490 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2490

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2490	#FFFFFF	#000000	##FFFFFF
##1F2490	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B93

Deuteranopia (green-blind)

#002F8E

Tritanopia (blue-blind)

#004358

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1f2490;
/* rgb */ color: rgb(31, 36, 144);
/* oklch */ color: oklch(34.5% 0.172 271.1);

Tailwind

colors: {
  custom: {
    50: '#6f60b2',
    500: '#1f2490',
    950: '#000000',
  },
}

SCSS

$custom: #1f2490;
$custom-light: #6f60b2;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2490",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 144
  },
  "hsl": {
    "h": 237.345,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.34469,
    "c": 0.17206,
    "h": 271.1
  },
  "luminance": 0.03567
}

Semantic roles & 50–950 ramp

primary

#1F2490

secondary

#BCB74E

accent

#E040E8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1F2490

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

Preview Lab → · Contrast checker → · Palette generator →