#2B3E88#2B3E88

#2B3E88 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.126 H 269.1°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#2B3E88
RGB	rgb(43, 62, 136)
HSL	hsl(228, 52%, 35%)
HSV	hsv(228, 68%, 53%)
CMYK	cmyk(68.4%, 54.4%, 0%, 46.7%)
CIE-LAB	lab(28.74, 18.35, -43.71)
CIE-LCH	lch(28.74, 47.41, 292.78°)
OKLab	oklab(39.25% -0.0021 -0.1256)
OKLCH	oklch(39.25% 0.126 269.1)
XYZ	xyz(7.1613, 5.7357, 24.0175)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3E88 #88752B

analogous

#2B6C88 #2B3E88 #472B88

triadic

#2B3E88 #882B3E #3E882B

tetradic

#2B3E88 #882B6C #88752B #2B8847

square

#2B3E88 #882B6C #88752B #2B8847

split-complementary

#2B3E88 #88472B #6C882B

monochromatic

#0E142B #1C295A #2B3E88 #3A53B6 #6177CD

Accessibility & contrast

On white

9.78

#2B3E88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#2B3E88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3E88

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3E88	#FFFFFF	#000000	##FFFFFF
##2B3E88	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D488B

Deuteranopia (green-blind)

#004086

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b3e88;
/* rgb */ color: rgb(43, 62, 136);
/* oklch */ color: oklch(39.2% 0.126 269.1);

Tailwind

colors: {
  custom: {
    50: '#7072ab',
    500: '#2b3e88',
    950: '#000000',
  },
}

SCSS

$custom: #2b3e88;
$custom-light: #7072ab;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3e88",
  "rgb": {
    "r": 43,
    "g": 62,
    "b": 136
  },
  "hsl": {
    "h": 227.742,
    "s": 51.955,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39249,
    "c": 0.12558,
    "h": 269.1
  },
  "luminance": 0.05736
}

Semantic roles & 50–950 ramp

primary

#2B3E88

secondary

#B3A15C

accent

#BE4CDB

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2B3E88

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

Preview Lab → · Contrast checker → · Palette generator →