#2F377A#2F377A

#2F377A is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.9% C 0.113 H 274.3°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#2F377A
RGB	rgb(47, 55, 122)
HSL	hsl(234, 44%, 33%)
HSV	hsv(234, 61%, 48%)
CMYK	cmyk(61.5%, 54.9%, 0%, 52.2%)
CIE-LAB	lab(25.98, 18.67, -39.38)
CIE-LCH	lch(25.98, 43.59, 295.36°)
OKLab	oklab(36.92% 0.0086 -0.1128)
OKLCH	oklch(36.92% 0.113 274.3)
XYZ	xyz(6.0502, 4.7414, 19.0049)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F377A #7A722F

analogous

#2F5C7A #2F377A #4C2F7A

triadic

#2F377A #7A2F37 #377A2F

tetradic

#2F377A #7A2F5C #7A722F #2F7A4C

square

#2F377A #7A2F5C #7A722F #2F7A4C

split-complementary

#2F377A #7A4C2F #5C7A2F

monochromatic

#0D0F22 #1E234E #2F377A #404BA6 #616CC2

Accessibility & contrast

On white

10.78

#2F377A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2F377A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F377A

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F377A	#FFFFFF	#000000	##FFFFFF
##2F377A	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F417C

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2f377a;
/* rgb */ color: rgb(47, 55, 122);
/* oklch */ color: oklch(36.9% 0.113 274.3);

Tailwind

colors: {
  custom: {
    50: '#6f6da1',
    500: '#2f377a',
    950: '#000000',
  },
}

SCSS

$custom: #2f377a;
$custom-light: #6f6da1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f377a",
  "rgb": {
    "r": 47,
    "g": 55,
    "b": 122
  },
  "hsl": {
    "h": 233.6,
    "s": 44.379,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36916,
    "c": 0.11314,
    "h": 274.3
  },
  "luminance": 0.04742
}

Semantic roles & 50–950 ramp

primary

#2F377A

secondary

#A9A15C

accent

#C654D4

background

#F7F6FA

surface

#EDEBF3

border

#C8C6CD

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2F377A

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

Preview Lab → · Contrast checker → · Palette generator →