#301F91#301F91

#301F91 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.0% C 0.174 H 279.2°. Best body text is #FFFFFF at 12.13:1 contrast (WCAG AA passes).

Color values

HEX	#301F91
RGB	rgb(48, 31, 145)
HSL	hsl(249, 65%, 35%)
HSV	hsv(249, 79%, 57%)
CMYK	cmyk(66.9%, 78.6%, 0%, 43.1%)
CIE-LAB	lab(22.49, 41.86, -59.49)
CIE-LCH	lch(22.49, 72.75, 305.13°)
OKLab	oklab(35.03% 0.0279 -0.1718)
OKLCH	oklch(35.03% 0.174 279.2)
XYZ	xyz(6.8181, 3.6521, 27.1282)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301F91 #80911F

analogous

#1F4791 #301F91 #691F91

triadic

#301F91 #91301F #1F9130

tetradic

#301F91 #911F47 #80911F #1F9169

square

#301F91 #911F47 #80911F #1F9169

split-complementary

#301F91 #91691F #47911F

monochromatic

#0F092C #1F145F #301F91 #412AC3 #6551DA

Accessibility & contrast

On white

12.13

#301F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#301F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301F91

12.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301F91	#FFFFFF	#000000	##FFFFFF
##301F91	1.00	12.13	1.73	12.13
#FFFFFF	12.13	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A94

Deuteranopia (green-blind)

#00318F

Tritanopia (blue-blind)

#004157

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #301f91;
/* rgb */ color: rgb(48, 31, 145);
/* oklch */ color: oklch(35.0% 0.174 279.2);

Tailwind

colors: {
  custom: {
    50: '#775eb2',
    500: '#301f91',
    950: '#000000',
  },
}

SCSS

$custom: #301f91;
$custom-light: #775eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#301f91",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 145
  },
  "hsl": {
    "h": 248.947,
    "s": 64.773,
    "l": 34.51
  },
  "oklch": {
    "l": 0.35028,
    "c": 0.17405,
    "h": 279.2
  },
  "luminance": 0.03653
}

Semantic roles & 50–950 ramp

primary

#301F91

secondary

#ACBD4F

accent

#E840CF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #301F91

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

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