#301E8B#301E8B

#301E8B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.3% C 0.168 H 280.4°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#301E8B
RGB	rgb(48, 30, 139)
HSL	hsl(250, 64%, 33%)
HSV	hsv(250, 78%, 55%)
CMYK	cmyk(65.5%, 78.4%, 0%, 45.5%)
CIE-LAB	lab(21.65, 40.49, -57.13)
CIE-LCH	lch(21.65, 70.03, 305.33°)
OKLab	oklab(34.25% 0.0302 -0.1649)
OKLCH	oklch(34.25% 0.168 280.4)
XYZ	xyz(6.3419, 3.4205, 24.7471)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#301E8B #798B1E

analogous

#1E428B #301E8B #661E8B

triadic

#301E8B #8B301E #1E8B30

tetradic

#301E8B #8B1E42 #798B1E #1E8B66

square

#301E8B #8B1E42 #798B1E #1E8B66

split-complementary

#301E8B #8B661E #428B1E

monochromatic

#0D0826 #1F1359 #301E8B #4129BD #624BD8

Accessibility & contrast

On white

12.47

#301E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#301E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #301E8B

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##301E8B	#FFFFFF	#000000	##FFFFFF
##301E8B	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388E

Deuteranopia (green-blind)

#003089

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #301e8b;
/* rgb */ color: rgb(48, 30, 139);
/* oklch */ color: oklch(34.3% 0.168 280.4);

Tailwind

colors: {
  custom: {
    50: '#755dae',
    500: '#301e8b',
    950: '#000000',
  },
}

SCSS

$custom: #301e8b;
$custom-light: #755dae;
$custom-dark: #000000;

JSON

{
  "hex": "#301e8b",
  "rgb": {
    "r": 48,
    "g": 30,
    "b": 139
  },
  "hsl": {
    "h": 249.908,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34253,
    "c": 0.16762,
    "h": 280.4
  },
  "luminance": 0.03421
}

Semantic roles & 50–950 ramp

primary

#301E8B

secondary

#A8BB4A

accent

#E740CC

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #301E8B

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

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