#301F87#301F87

#301F87 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.0% C 0.162 H 280.9°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#301F87
RGB	rgb(48, 31, 135)
HSL	hsl(250, 63%, 33%)
HSV	hsv(250, 77%, 53%)
CMYK	cmyk(64.4%, 77%, 0%, 47.1%)
CIE-LAB	lab(21.42, 38.68, -55.01)
CIE-LCH	lch(21.42, 67.25, 305.11°)
OKLab	oklab(33.96% 0.0306 -0.1587)
OKLCH	oklch(33.96% 0.162 280.9)
XYZ	xyz(6.0807, 3.3572, 23.2445)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301F87 #76871F

analogous

#1F4287 #301F87 #641F87

triadic

#301F87 #87301F #1F8730

tetradic

#301F87 #871F42 #76871F #1F8764

square

#301F87 #871F42 #76871F #1F8764

split-complementary

#301F87 #87641F #42871F

monochromatic

#0D0823 #1E1455 #301F87 #422AB9 #614BD6

Accessibility & contrast

On white

12.56

#301F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#301F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301F87

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301F87	#FFFFFF	#000000	##FFFFFF
##301F87	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378A

Deuteranopia (green-blind)

#002F85

Tritanopia (blue-blind)

#003D51

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #301f87;
/* rgb */ color: rgb(48, 31, 135);
/* oklch */ color: oklch(34.0% 0.162 280.9);

Tailwind

colors: {
  custom: {
    50: '#745dab',
    500: '#301f87',
    950: '#000000',
  },
}

SCSS

$custom: #301f87;
$custom-light: #745dab;
$custom-dark: #000000;

JSON

{
  "hex": "#301f87",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 135
  },
  "hsl": {
    "h": 249.808,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33961,
    "c": 0.16163,
    "h": 280.9
  },
  "luminance": 0.03358
}

Semantic roles & 50–950 ramp

primary

#301F87

secondary

#A6B84A

accent

#E642CB

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #301F87

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

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