#2B3E8B#2B3E8B

#2B3E8B is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.5% C 0.130 H 269.2°. Best body text is #FFFFFF at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#2B3E8B
RGB	rgb(43, 62, 139)
HSL	hsl(228, 53%, 36%)
HSV	hsv(228, 69%, 55%)
CMYK	cmyk(69.1%, 55.4%, 0%, 45.5%)
CIE-LAB	lab(28.96, 19.49, -45.21)
CIE-LCH	lch(28.96, 49.23, 293.33°)
OKLab	oklab(39.49% -0.0018 -0.13)
OKLCH	oklch(39.49% 0.13 269.2)
XYZ	xyz(7.3775, 5.8222, 25.1561)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3E8B #8B782B

analogous

#2B6E8B #2B3E8B #482B8B

triadic

#2B3E8B #8B2B3E #3E8B2B

tetradic

#2B3E8B #8B2B6E #8B782B #2B8B48

square

#2B3E8B #8B2B6E #8B782B #2B8B48

split-complementary

#2B3E8B #8B482B #6E8B2B

monochromatic

#0E142E #1D295C #2B3E8B #3953BA #6277CE

Accessibility & contrast

On white

9.70

#2B3E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2B3E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3E8B

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3E8B	#FFFFFF	#000000	##FFFFFF
##2B3E8B	1.00	9.70	2.16	9.70
#FFFFFF	9.70	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05498E

Deuteranopia (green-blind)

#004089

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b3e8b;
/* rgb */ color: rgb(43, 62, 139);
/* oklch */ color: oklch(39.5% 0.130 269.2);

Tailwind

colors: {
  custom: {
    50: '#7072ad',
    500: '#2b3e8b',
    950: '#000000',
  },
}

SCSS

$custom: #2b3e8b;
$custom-light: #7072ad;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3e8b",
  "rgb": {
    "r": 43,
    "g": 62,
    "b": 139
  },
  "hsl": {
    "h": 228.125,
    "s": 52.747,
    "l": 35.686
  },
  "oklch": {
    "l": 0.39489,
    "c": 0.12997,
    "h": 269.2
  },
  "luminance": 0.05823
}

Semantic roles & 50–950 ramp

primary

#2B3E8B

secondary

#B5A35D

accent

#C04CDC

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2B3E8B

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

Preview Lab → · Contrast checker → · Palette generator →