#1F249F#1F249F

#1F249F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.1% C 0.191 H 270.2°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#1F249F
RGB	rgb(31, 36, 159)
HSL	hsl(238, 67%, 37%)
HSV	hsv(238, 81%, 62%)
CMYK	cmyk(80.5%, 77.4%, 0%, 37.6%)
CIE-LAB	lab(23.85, 42.22, -65.88)
CIE-LCH	lch(23.85, 78.24, 302.65°)
OKLab	oklab(36.15% 0.0007 -0.1908)
OKLCH	oklch(36.15% 0.191 270.2)
XYZ	xyz(7.4518, 4.0554, 33.1842)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F249F #9F9A1F

analogous

#1F649F #1F249F #5A1F9F

triadic

#1F249F #9F1F24 #249F1F

tetradic

#1F249F #9F1F64 #9F9A1F #1F9F5A

square

#1F249F #9F1F64 #9F9A1F #1F9F5A

split-complementary

#1F249F #9F5A1F #649F1F

monochromatic

#0B0D39 #15186C #1F249F #2930D2 #5A5FDF

Accessibility & contrast

On white

11.59

#1F249F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1F249F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F249F

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F249F	#FFFFFF	#000000	##FFFFFF
##1F249F	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA3

Deuteranopia (green-blind)

#00329D

Tritanopia (blue-blind)

#004960

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f249f;
/* rgb */ color: rgb(31, 36, 159);
/* oklch */ color: oklch(36.1% 0.191 270.2);

Tailwind

colors: {
  custom: {
    50: '#7361bd',
    500: '#1f249f',
    950: '#000000',
  },
}

SCSS

$custom: #1f249f;
$custom-light: #7361bd;
$custom-dark: #000000;

JSON

{
  "hex": "#1f249f",
  "rgb": {
    "r": 31,
    "g": 36,
    "b": 159
  },
  "hsl": {
    "h": 237.656,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36149,
    "c": 0.19081,
    "h": 270.2
  },
  "luminance": 0.04056
}

Semantic roles & 50–950 ramp

primary

#1F249F

secondary

#C3BF57

accent

#E43EEA

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #1F249F

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

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