#301F90#301F90

#301F90 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.9% C 0.173 H 279.4°. Best body text is #FFFFFF at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#301F90
RGB	rgb(48, 31, 144)
HSL	hsl(249, 65%, 34%)
HSV	hsv(249, 78%, 56%)
CMYK	cmyk(66.7%, 78.5%, 0%, 43.5%)
CIE-LAB	lab(22.38, 41.55, -59.05)
CIE-LCH	lch(22.38, 72.20, 305.13°)
OKLab	oklab(34.92% 0.0282 -0.1705)
OKLCH	oklch(34.92% 0.173 279.4)
XYZ	xyz(6.7413, 3.6214, 26.7239)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301F90 #7F901F

analogous

#1F4690 #301F90 #691F90

triadic

#301F90 #90301F #1F9030

tetradic

#301F90 #901F46 #7F901F #1F9069

square

#301F90 #901F46 #7F901F #1F9069

split-complementary

#301F90 #90691F #46901F

monochromatic

#0E092B #1F145E #301F90 #412AC2 #6550D9

Accessibility & contrast

On white

12.18

#301F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#301F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301F90

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301F90	#FFFFFF	#000000	##FFFFFF
##301F90	1.00	12.18	1.72	12.18
#FFFFFF	12.18	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A93

Deuteranopia (green-blind)

#00318E

Tritanopia (blue-blind)

#004057

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #301f90;
/* rgb */ color: rgb(48, 31, 144);
/* oklch */ color: oklch(34.9% 0.173 279.4);

Tailwind

colors: {
  custom: {
    50: '#765eb2',
    500: '#301f90',
    950: '#000000',
  },
}

SCSS

$custom: #301f90;
$custom-light: #765eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#301f90",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 144
  },
  "hsl": {
    "h": 249.027,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.3492,
    "c": 0.17281,
    "h": 279.4
  },
  "luminance": 0.03622
}

Semantic roles & 50–950 ramp

primary

#301F90

secondary

#ACBC4E

accent

#E840CE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #301F90

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

Preview Lab → · Contrast checker → · Palette generator →