#2B3B8A#2B3B8A

#2B3B8A is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.133 H 270.4°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#2B3B8A
RGB	rgb(43, 59, 138)
HSL	hsl(230, 52%, 35%)
HSV	hsv(230, 69%, 54%)
CMYK	cmyk(68.8%, 57.2%, 0%, 45.9%)
CIE-LAB	lab(28.05, 21.16, -46.06)
CIE-LCH	lch(28.05, 50.69, 294.68°)
OKLab	oklab(38.78% 0.0009 -0.1325)
OKLCH	oklch(38.78% 0.133 270.4)
XYZ	xyz(7.1461, 5.4758, 24.7202)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3B8A #8A7A2B

analogous

#2B6A8A #2B3B8A #4B2B8A

triadic

#2B3B8A #8A2B3B #3B8A2B

tetradic

#2B3B8A #8A2B6A #8A7A2B #2B8A4B

square

#2B3B8A #8A2B6A #8A7A2B #2B8A4B

split-complementary

#2B3B8A #8A4B2B #6A8A2B

monochromatic

#0E132D #1C275B #2B3B8A #3A4FB9 #6174CE

Accessibility & contrast

On white

10.02

#2B3B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2B3B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3B8A

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3B8A	#FFFFFF	#000000	##FFFFFF
##2B3B8A	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478D

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2b3b8a;
/* rgb */ color: rgb(43, 59, 138);
/* oklch */ color: oklch(38.8% 0.133 270.4);

Tailwind

colors: {
  custom: {
    50: '#7070ad',
    500: '#2b3b8a',
    950: '#000000',
  },
}

SCSS

$custom: #2b3b8a;
$custom-light: #7070ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3b8a",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 138
  },
  "hsl": {
    "h": 229.895,
    "s": 52.486,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38781,
    "c": 0.13252,
    "h": 270.4
  },
  "luminance": 0.05476
}

Semantic roles & 50–950 ramp

primary

#2B3B8A

secondary

#B4A55D

accent

#C44CDC

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2B3B8A

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

Preview Lab → · Contrast checker → · Palette generator →