#2F397E#2F397E

#2F397E is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.7% C 0.116 H 273.3°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#2F397E
RGB	rgb(47, 57, 126)
HSL	hsl(232, 46%, 34%)
HSV	hsv(232, 63%, 49%)
CMYK	cmyk(62.7%, 54.8%, 0%, 50.6%)
CIE-LAB	lab(26.84, 18.77, -40.53)
CIE-LCH	lch(26.84, 44.66, 294.85°)
OKLab	oklab(37.65% 0.0067 -0.1162)
OKLCH	oklch(37.65% 0.116 273.3)
XYZ	xyz(6.4001, 5.0364, 20.3695)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F397E #7E742F

analogous

#2F617E #2F397E #4D2F7E

triadic

#2F397E #7E2F39 #397E2F

tetradic

#2F397E #7E2F61 #7E742F #2F7E4D

square

#2F397E #7E2F61 #7E742F #2F7E4D

split-complementary

#2F397E #7E4D2F #617E2F

monochromatic

#0E1125 #1E2551 #2F397E #404DAB #636FC5

Accessibility & contrast

On white

10.46

#2F397E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#2F397E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F397E

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F397E	#FFFFFF	#000000	##FFFFFF
##2F397E	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4380

Deuteranopia (green-blind)

#003C7D

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2f397e;
/* rgb */ color: rgb(47, 57, 126);
/* oklch */ color: oklch(37.7% 0.116 273.3);

Tailwind

colors: {
  custom: {
    50: '#706fa4',
    500: '#2f397e',
    950: '#000000',
  },
}

SCSS

$custom: #2f397e;
$custom-light: #706fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f397e",
  "rgb": {
    "r": 47,
    "g": 57,
    "b": 126
  },
  "hsl": {
    "h": 232.405,
    "s": 45.665,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37651,
    "c": 0.11635,
    "h": 273.3
  },
  "luminance": 0.05037
}

Semantic roles & 50–950 ramp

primary

#2F397E

secondary

#ACA25D

accent

#C552D5

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08070F

muted

#7B7A7F

Preview Lab

Preview with #2F397E

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

Preview Lab → · Contrast checker → · Palette generator →