#301F89#301F89

#301F89 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.2% C 0.164 H 280.5°. Best body text is #FFFFFF at 12.48:1 contrast (WCAG AA passes).

Color values

HEX	#301F89
RGB	rgb(48, 31, 137)
HSL	hsl(250, 63%, 33%)
HSV	hsv(250, 77%, 54%)
CMYK	cmyk(65%, 77.4%, 0%, 46.3%)
CIE-LAB	lab(21.63, 39.32, -55.92)
CIE-LCH	lch(21.63, 68.36, 305.11°)
OKLab	oklab(34.17% 0.03 -0.1614)
OKLCH	oklch(34.17% 0.164 280.5)
XYZ	xyz(6.2228, 3.4140, 23.9931)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301F89 #78891F

analogous

#1F4389 #301F89 #651F89

triadic

#301F89 #89301F #1F8930

tetradic

#301F89 #891F43 #78891F #1F8965

square

#301F89 #891F43 #78891F #1F8965

split-complementary

#301F89 #89651F #43891F

monochromatic

#0D0825 #1F1457 #301F89 #412ABB #624CD6

Accessibility & contrast

On white

12.48

#301F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#301F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301F89

12.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301F89	#FFFFFF	#000000	##FFFFFF
##301F89	1.00	12.48	1.68	12.48
#FFFFFF	12.48	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388C

Deuteranopia (green-blind)

#003087

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #301f89;
/* rgb */ color: rgb(48, 31, 137);
/* oklch */ color: oklch(34.2% 0.164 280.5);

Tailwind

colors: {
  custom: {
    50: '#755dad',
    500: '#301f89',
    950: '#000000',
  },
}

SCSS

$custom: #301f89;
$custom-light: #755dad;
$custom-dark: #000000;

JSON

{
  "hex": "#301f89",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 137
  },
  "hsl": {
    "h": 249.623,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34172,
    "c": 0.16414,
    "h": 280.5
  },
  "luminance": 0.03414
}

Semantic roles & 50–950 ramp

primary

#301F89

secondary

#A7B94B

accent

#E642CC

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #301F89

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

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