#2B308F#2B308F

#2B308F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.1% C 0.154 H 273.8°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#2B308F
RGB	rgb(43, 48, 143)
HSL	hsl(237, 54%, 36%)
HSV	hsv(237, 70%, 56%)
CMYK	cmyk(69.9%, 66.4%, 0%, 43.9%)
CIE-LAB	lab(25.59, 30.40, -53.16)
CIE-LCH	lch(25.59, 61.24, 299.76°)
OKLab	oklab(37.1% 0.0101 -0.1535)
OKLCH	oklch(37.1% 0.154 273.8)
XYZ	xyz(7.0095, 4.6100, 26.5017)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B308F #8F8A2B

analogous

#2B628F #2B308F #582B8F

triadic

#2B308F #8F2B30 #308F2B

tetradic

#2B308F #8F2B62 #8F8A2B #2B8F58

square

#2B308F #8F2B62 #8F8A2B #2B8F58

split-complementary

#2B308F #8F582B #628F2B

monochromatic

#0F1031 #1D2060 #2B308F #3940BE #6469D0

Accessibility & contrast

On white

10.92

#2B308F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#2B308F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B308F

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B308F	#FFFFFF	#000000	##FFFFFF
##2B308F	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004192

Deuteranopia (green-blind)

#00388D

Tritanopia (blue-blind)

#00495B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b308f;
/* rgb */ color: rgb(43, 48, 143);
/* oklch */ color: oklch(37.1% 0.154 273.8);

Tailwind

colors: {
  custom: {
    50: '#7268b1',
    500: '#2b308f',
    950: '#000000',
  },
}

SCSS

$custom: #2b308f;
$custom-light: #7268b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b308f",
  "rgb": {
    "r": 43,
    "g": 48,
    "b": 143
  },
  "hsl": {
    "h": 237,
    "s": 53.763,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37095,
    "c": 0.1538,
    "h": 273.8
  },
  "luminance": 0.04611
}

Semantic roles & 50–950 ramp

primary

#2B308F

secondary

#B7B25F

accent

#D64BDD

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B308F

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

Preview Lab → · Contrast checker → · Palette generator →