#2B387B#2B387B

#2B387B is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.9% C 0.114 H 271.4°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#2B387B
RGB	rgb(43, 56, 123)
HSL	hsl(230, 48%, 33%)
HSV	hsv(230, 65%, 48%)
CMYK	cmyk(65%, 54.5%, 0%, 51.8%)
CIE-LAB	lab(26.07, 17.56, -39.89)
CIE-LCH	lch(26.07, 43.58, 293.76°)
OKLab	oklab(36.94% 0.0029 -0.1144)
OKLCH	oklch(36.94% 0.114 271.4)
XYZ	xyz(5.9844, 4.7715, 19.3407)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B387B #7B6E2B

analogous

#2B607B #2B387B #462B7B

triadic

#2B387B #7B2B38 #387B2B

tetradic

#2B387B #7B2B60 #7B6E2B #2B7B46

square

#2B387B #7B2B60 #7B6E2B #2B7B46

split-complementary

#2B387B #7B462B #607B2B

monochromatic

#0B0F20 #1B234E #2B387B #3B4DA8 #5B6CC6

Accessibility & contrast

On white

10.74

#2B387B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2B387B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B387B

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B387B	#FFFFFF	#000000	##FFFFFF
##2B387B	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F417D

Deuteranopia (green-blind)

#003A7A

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b387b;
/* rgb */ color: rgb(43, 56, 123);
/* oklch */ color: oklch(36.9% 0.114 271.4);

Tailwind

colors: {
  custom: {
    50: '#6d6ea2',
    500: '#2b387b',
    950: '#000000',
  },
}

SCSS

$custom: #2b387b;
$custom-light: #6d6ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b387b",
  "rgb": {
    "r": 43,
    "g": 56,
    "b": 123
  },
  "hsl": {
    "h": 230.25,
    "s": 48.193,
    "l": 32.549
  },
  "oklch": {
    "l": 0.36936,
    "c": 0.11443,
    "h": 271.4
  },
  "luminance": 0.04772
}

Semantic roles & 50–950 ramp

primary

#2B387B

secondary

#AB9E56

accent

#C250D8

background

#F6F6FA

surface

#ECEBF3

border

#C7C6CD

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #2B387B

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

Preview Lab → · Contrast checker → · Palette generator →