#301E9B#301E9B

#301E9B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 36.0% C 0.187 H 277.9°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#301E9B
RGB	rgb(48, 30, 155)
HSL	hsl(249, 68%, 36%)
HSV	hsv(249, 81%, 61%)
CMYK	cmyk(69%, 80.6%, 0%, 39.2%)
CIE-LAB	lab(23.41, 45.50, -64.12)
CIE-LCH	lch(23.41, 78.62, 305.36°)
OKLab	oklab(36% 0.0257 -0.1853)
OKLCH	oklch(36% 0.187 277.9)
XYZ	xyz(7.5977, 3.9228, 31.3608)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301E9B #899B1E

analogous

#1E4B9B #301E9B #6F1E9B

triadic

#301E9B #9B301E #1E9B30

tetradic

#301E9B #9B1E4B #899B1E #1E9B6F

square

#301E9B #9B1E4B #899B1E #1E9B6F

split-complementary

#301E9B #9B6F1E #4B9B1E

monochromatic

#100A34 #201468 #301E9B #4028CE #6955DE

Accessibility & contrast

On white

11.77

#301E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#301E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301E9B

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301E9B	#FFFFFF	#000000	##FFFFFF
##301E9B	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9E

Deuteranopia (green-blind)

#003399

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #301e9b;
/* rgb */ color: rgb(48, 30, 155);
/* oklch */ color: oklch(36.0% 0.187 277.9);

Tailwind

colors: {
  custom: {
    50: '#795eba',
    500: '#301e9b',
    950: '#000000',
  },
}

SCSS

$custom: #301e9b;
$custom-light: #795eba;
$custom-dark: #000000;

JSON

{
  "hex": "#301e9b",
  "rgb": {
    "r": 48,
    "g": 30,
    "b": 155
  },
  "hsl": {
    "h": 248.64,
    "s": 67.568,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36003,
    "c": 0.18703,
    "h": 277.9
  },
  "luminance": 0.03923
}

Semantic roles & 50–950 ramp

primary

#301E9B

secondary

#B2C253

accent

#EA3DD2

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #301E9B

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

Preview Lab → · Contrast checker → · Palette generator →