#1F249A#1F249A

#1F249A is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.6% C 0.185 H 270.5°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#1F249A
RGB	rgb(31, 36, 154)
HSL	hsl(238, 66%, 36%)
HSV	hsv(238, 80%, 60%)
CMYK	cmyk(79.9%, 76.6%, 0%, 39.6%)
CIE-LAB	lab(23.29, 40.50, -63.76)
CIE-LCH	lch(23.29, 75.53, 302.43°)
OKLab	oklab(35.58% 0.0016 -0.1846)
OKLCH	oklch(35.58% 0.185 270.5)
XYZ	xyz(7.0267, 3.8854, 30.9452)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F249A #9A951F

analogous

#1F629A #1F249A #581F9A

triadic

#1F249A #9A1F24 #249A1F

tetradic

#1F249A #9A1F62 #9A951F #1F9A58

square

#1F249A #9A1F62 #9A951F #1F9A58

split-complementary

#1F249A #9A581F #629A1F

monochromatic

#0A0C34 #151867 #1F249A #2930CD #565CDD

Accessibility & contrast

On white

11.82

#1F249A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1F249A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F249A

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F249A	#FFFFFF	#000000	##FFFFFF
##1F249A	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E9D

Deuteranopia (green-blind)

#003198

Tritanopia (blue-blind)

#00475D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1f249a;
/* rgb */ color: rgb(31, 36, 154);
/* oklch */ color: oklch(35.6% 0.185 270.5);

Tailwind

colors: {
  custom: {
    50: '#7260b9',
    500: '#1f249a',
    950: '#000000',
  },
}

SCSS

$custom: #1f249a;
$custom-light: #7260b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f249a",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 154
  },
  "hsl": {
    "h": 237.561,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35583,
    "c": 0.18465,
    "h": 270.5
  },
  "luminance": 0.03886
}

Semantic roles & 50–950 ramp

primary

#1F249A

secondary

#C1BC54

accent

#E23EE9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090512

muted

#7B7981

Preview Lab

Preview with #1F249A

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

Preview Lab → · Contrast checker → · Palette generator →