#2B318E#2B318E

#2B318E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.151 H 273.6°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#2B318E
RGB	rgb(43, 49, 142)
HSL	hsl(236, 54%, 36%)
HSV	hsv(236, 70%, 56%)
CMYK	cmyk(69.7%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(25.75, 29.38, -52.28)
CIE-LCH	lch(25.75, 59.97, 299.33°)
OKLab	oklab(37.18% 0.0094 -0.1509)
OKLCH	oklch(37.18% 0.151 273.6)
XYZ	xyz(6.9754, 4.6626, 26.1183)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B318E #8E882B

analogous

#2B638E #2B318E #572B8E

triadic

#2B318E #8E2B31 #318E2B

tetradic

#2B318E #8E2B63 #8E882B #2B8E57

square

#2B318E #8E2B63 #8E882B #2B8E57

split-complementary

#2B318E #8E572B #638E2B

monochromatic

#0F1130 #1D215F #2B318E #3941BD #636AD0

Accessibility & contrast

On white

10.87

#2B318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2B318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B318E

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B318E	#FFFFFF	#000000	##FFFFFF
##2B318E	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004291

Deuteranopia (green-blind)

#00398C

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b318e;
/* rgb */ color: rgb(43, 49, 142);
/* oklch */ color: oklch(37.2% 0.151 273.6);

Tailwind

colors: {
  custom: {
    50: '#7269b0',
    500: '#2b318e',
    950: '#000000',
  },
}

SCSS

$custom: #2b318e;
$custom-light: #7269b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b318e",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 236.364,
    "s": 53.514,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37183,
    "c": 0.15119,
    "h": 273.6
  },
  "luminance": 0.04663
}

Semantic roles & 50–950 ramp

primary

#2B318E

secondary

#B6B15F

accent

#D44BDD

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B318E

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

Preview Lab → · Contrast checker → · Palette generator →