#301F98#301F98

#301F98 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.8% C 0.183 H 278.2°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#301F98
RGB	rgb(48, 31, 152)
HSL	hsl(248, 66%, 36%)
HSV	hsv(248, 80%, 60%)
CMYK	cmyk(68.4%, 79.6%, 0%, 40.4%)
CIE-LAB	lab(23.25, 44.06, -62.55)
CIE-LCH	lch(23.25, 76.51, 305.16°)
OKLab	oklab(35.79% 0.026 -0.1807)
OKLCH	oklch(35.79% 0.183 278.2)
XYZ	xyz(7.3746, 3.8747, 30.0589)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301F98 #87981F

analogous

#1F4A98 #301F98 #6C1F98

triadic

#301F98 #98301F #1F9830

tetradic

#301F98 #981F4A #87981F #1F986C

square

#301F98 #981F4A #87981F #1F986C

split-complementary

#301F98 #986C1F #4A981F

monochromatic

#100A32 #201565 #301F98 #4029CB #6855DC

Accessibility & contrast

On white

11.83

#301F98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#301F98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301F98

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301F98	#FFFFFF	#000000	##FFFFFF
##301F98	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9B

Deuteranopia (green-blind)

#003296

Tritanopia (blue-blind)

#00435B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #301f98;
/* rgb */ color: rgb(48, 31, 152);
/* oklch */ color: oklch(35.8% 0.183 278.2);

Tailwind

colors: {
  custom: {
    50: '#785eb8',
    500: '#301f98',
    950: '#000000',
  },
}

SCSS

$custom: #301f98;
$custom-light: #785eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#301f98",
  "rgb": {
    "r": 48,
    "g": 31,
    "b": 152
  },
  "hsl": {
    "h": 248.43,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.35791,
    "c": 0.18255,
    "h": 278.2
  },
  "luminance": 0.03875
}

Semantic roles & 50–950 ramp

primary

#301F98

secondary

#B1C053

accent

#E93FD1

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0511

muted

#7C7980

Preview Lab

Preview with #301F98

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

Preview Lab → · Contrast checker → · Palette generator →