#2B3F7D#2B3F7D

#2B3F7D is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.6% C 0.108 H 267.7°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#2B3F7D
RGB	rgb(43, 63, 125)
HSL	hsl(225, 49%, 33%)
HSV	hsv(225, 66%, 49%)
CMYK	cmyk(65.6%, 49.6%, 0%, 51%)
CIE-LAB	lab(28.24, 13.49, -37.65)
CIE-LCH	lch(28.24, 39.99, 289.72°)
OKLab	oklab(38.63% -0.0043 -0.1077)
OKLCH	oklch(38.63% 0.108 267.7)
XYZ	xyz(6.4742, 5.5487, 20.1279)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3F7D #7D692B

analogous

#2B687D #2B3F7D #402B7D

triadic

#2B3F7D #7D2B3F #3F7D2B

tetradic

#2B3F7D #7D2B68 #7D692B #2B7D40

square

#2B3F7D #7D2B68 #7D692B #2B7D40

split-complementary

#2B3F7D #7D402B #687D2B

monochromatic

#0C1122 #1B284F #2B3F7D #3B56AB #5C76C7

Accessibility & contrast

On white

9.95

#2B3F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2B3F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F7D

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3F7D	#FFFFFF	#000000	##FFFFFF
##2B3F7D	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F477F

Deuteranopia (green-blind)

#0F3F7C

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b3f7d;
/* rgb */ color: rgb(43, 63, 125);
/* oklch */ color: oklch(38.6% 0.108 267.7);

Tailwind

colors: {
  custom: {
    50: '#6d73a3',
    500: '#2b3f7d',
    950: '#000000',
  },
}

SCSS

$custom: #2b3f7d;
$custom-light: #6d73a3;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3f7d",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 225.366,
    "s": 48.81,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38627,
    "c": 0.1078,
    "h": 267.7
  },
  "luminance": 0.05549
}

Semantic roles & 50–950 ramp

primary

#2B3F7D

secondary

#AD9857

accent

#B74FD8

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #2B3F7D

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

Preview Lab → · Contrast checker → · Palette generator →