#302F9B#302F9B

#302F9B is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.4% C 0.170 H 275.3°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#302F9B
RGB	rgb(48, 47, 155)
HSL	hsl(241, 53%, 40%)
HSV	hsv(241, 70%, 61%)
CMYK	cmyk(69%, 69.7%, 0%, 39.2%)
CIE-LAB	lab(26.81, 35.95, -58.52)
CIE-LCH	lch(26.81, 68.68, 301.56°)
OKLab	oklab(38.41% 0.0156 -0.169)
OKLCH	oklch(38.41% 0.17 275.3)
XYZ	xyz(8.1499, 5.0272, 31.5448)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#302F9B #9A9B2F

analogous

#2F649B #302F9B #662F9B

triadic

#302F9B #9B302F #2F9B30

tetradic

#302F9B #9B2F64 #9A9B2F #2F9B66

square

#302F9B #9B2F64 #9A9B2F #2F9B66

split-complementary

#302F9B #9B662F #649B2F

monochromatic

#13133D #21216C #302F9B #4342C6 #7271D4

Accessibility & contrast

On white

10.47

#302F9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#302F9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #302F9B

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##302F9B	#FFFFFF	#000000	##FFFFFF
##302F9B	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#003A99

Tritanopia (blue-blind)

#004C61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #302f9b;
/* rgb */ color: rgb(48, 47, 155);
/* oklch */ color: oklch(38.4% 0.170 275.3);

Tailwind

colors: {
  custom: {
    50: '#7768ba',
    500: '#302f9b',
    950: '#000000',
  },
}

SCSS

$custom: #302f9b;
$custom-light: #7768ba;
$custom-dark: #000000;

JSON

{
  "hex": "#302f9b",
  "rgb": {
    "r": 48,
    "g": 47,
    "b": 155
  },
  "hsl": {
    "h": 240.556,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.38411,
    "c": 0.16976,
    "h": 275.3
  },
  "luminance": 0.05028
}

Semantic roles & 50–950 ramp

primary

#302F9B

secondary

#BBBB6A

accent

#DD4BDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #302F9B

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

Preview Lab → · Contrast checker → · Palette generator →