#2B308E#2B308E

#2B308E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.0% C 0.152 H 273.8°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#2B308E
RGB	rgb(43, 48, 142)
HSL	hsl(237, 54%, 36%)
HSV	hsv(237, 70%, 56%)
CMYK	cmyk(69.7%, 66.2%, 0%, 44.3%)
CIE-LAB	lab(25.50, 30.03, -52.69)
CIE-LCH	lch(25.50, 60.65, 299.68°)
OKLab	oklab(37% 0.0102 -0.1521)
OKLCH	oklch(37% 0.152 273.8)
XYZ	xyz(6.9341, 4.5798, 26.1045)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B308E #8E892B

analogous

#2B628E #2B308E #582B8E

triadic

#2B308E #8E2B30 #308E2B

tetradic

#2B308E #8E2B62 #8E892B #2B8E58

square

#2B308E #8E2B62 #8E892B #2B8E58

split-complementary

#2B308E #8E582B #628E2B

monochromatic

#0F1030 #1D205F #2B308E #3940BD #6369D0

Accessibility & contrast

On white

10.96

#2B308E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#2B308E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B308E

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B308E	#FFFFFF	#000000	##FFFFFF
##2B308E	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00388C

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #2b308e;
/* rgb */ color: rgb(43, 48, 142);
/* oklch */ color: oklch(37.0% 0.152 273.8);

Tailwind

colors: {
  custom: {
    50: '#7268b0',
    500: '#2b308e',
    950: '#000000',
  },
}

SCSS

$custom: #2b308e;
$custom-light: #7268b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b308e",
  "rgb": {
    "r": 43,
    "g": 48,
    "b": 142
  },
  "hsl": {
    "h": 236.97,
    "s": 53.514,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37001,
    "c": 0.15243,
    "h": 273.8
  },
  "luminance": 0.0458
}

Semantic roles & 50–950 ramp

primary

#2B308E

secondary

#B6B25F

accent

#D64BDD

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B308E

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

Preview Lab → · Contrast checker → · Palette generator →