#1F259C#1F259C

#1F259C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.0% C 0.186 H 270.3°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#1F259C
RGB	rgb(31, 37, 156)
HSL	hsl(237, 67%, 37%)
HSV	hsv(237, 80%, 61%)
CMYK	cmyk(80.1%, 76.3%, 0%, 38.8%)
CIE-LAB	lab(23.72, 40.61, -64.27)
CIE-LCH	lch(23.72, 76.03, 302.29°)
OKLab	oklab(35.95% 0.0008 -0.1861)
OKLCH	oklch(35.95% 0.186 270.3)
XYZ	xyz(7.2253, 4.0139, 31.8400)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F259C #9C961F

analogous

#1F649C #1F259C #581F9C

triadic

#1F259C #9C1F25 #259C1F

tetradic

#1F259C #9C1F64 #9C961F #1F9C58

square

#1F259C #9C1F64 #9C961F #1F9C58

split-complementary

#1F259C #9C581F #649C1F

monochromatic

#0B0D36 #151969 #1F259C #2931CF #585EDE

Accessibility & contrast

On white

11.65

#1F259C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1F259C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F259C

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F259C	#FFFFFF	#000000	##FFFFFF
##1F259C	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9F

Deuteranopia (green-blind)

#00329A

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1f259c;
/* rgb */ color: rgb(31, 37, 156);
/* oklch */ color: oklch(36.0% 0.186 270.3);

Tailwind

colors: {
  custom: {
    50: '#7261ba',
    500: '#1f259c',
    950: '#000000',
  },
}

SCSS

$custom: #1f259c;
$custom-light: #7261ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1f259c",
  "rgb": {
    "r": 31,
    "g": 37,
    "b": 156
  },
  "hsl": {
    "h": 237.12,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35953,
    "c": 0.18615,
    "h": 270.3
  },
  "luminance": 0.04015
}

Semantic roles & 50–950 ramp

primary

#1F259C

secondary

#C1BC55

accent

#E23EEA

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#090512

muted

#7B7981

Preview Lab

Preview with #1F259C

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

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