#2B3F87#2B3F87

#2B3F87 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.123 H 268.5°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#2B3F87
RGB	rgb(43, 63, 135)
HSL	hsl(227, 52%, 35%)
HSV	hsv(227, 68%, 53%)
CMYK	cmyk(68.1%, 53.3%, 0%, 47.1%)
CIE-LAB	lab(28.95, 17.29, -42.75)
CIE-LCH	lch(28.95, 46.12, 292.02°)
OKLab	oklab(39.39% -0.0031 -0.1227)
OKLCH	oklch(39.39% 0.123 268.5)
XYZ	xyz(7.1454, 5.8172, 23.6632)
Luminance	0.0582 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3F87 #87732B

analogous

#2B6D87 #2B3F87 #452B87

triadic

#2B3F87 #872B3F #3F872B

tetradic

#2B3F87 #872B6D #87732B #2B8745

square

#2B3F87 #872B6D #87732B #2B8745

split-complementary

#2B3F87 #87452B #6D872B

monochromatic

#0D142A #1C2959 #2B3F87 #3A55B5 #6078CC

Accessibility & contrast

On white

9.71

#2B3F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#2B3F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F87

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3F87	#FFFFFF	#000000	##FFFFFF
##2B3F87	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13498A

Deuteranopia (green-blind)

#004086

Tritanopia (blue-blind)

#00505C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2b3f87;
/* rgb */ color: rgb(43, 63, 135);
/* oklch */ color: oklch(39.4% 0.123 268.5);

Tailwind

colors: {
  custom: {
    50: '#6f73aa',
    500: '#2b3f87',
    950: '#000000',
  },
}

SCSS

$custom: #2b3f87;
$custom-light: #6f73aa;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3f87",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 135
  },
  "hsl": {
    "h": 226.957,
    "s": 51.685,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39385,
    "c": 0.12276,
    "h": 268.5
  },
  "luminance": 0.05818
}

Semantic roles & 50–950 ramp

primary

#2B3F87

secondary

#B29F5B

accent

#BC4DDB

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #2B3F87

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

Preview Lab → · Contrast checker → · Palette generator →