#2B375B#2B375B

#2B375B is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.4% C 0.065 H 268.8°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#2B375B
RGB	rgb(43, 55, 91)
HSL	hsl(225, 36%, 26%)
HSV	hsv(225, 53%, 36%)
CMYK	cmyk(52.7%, 39.6%, 0%, 64.3%)
CIE-LAB	lab(23.67, 6.46, -23.15)
CIE-LCH	lch(23.67, 24.03, 285.59°)
OKLab	oklab(34.43% -0.0013 -0.0653)
OKLCH	oklch(34.43% 0.065 268.8)
XYZ	xyz(4.2502, 4.0010, 10.4438)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B375B #5B4F2B

analogous

#2B4F5B #2B375B #372B5B

triadic

#2B375B #5B2B37 #375B2B

tetradic

#2B375B #5B2B4F #5B4F2B #2B5B37

square

#2B375B #5B2B4F #5B4F2B #2B5B37

split-complementary

#2B375B #5B372B #4F5B2B

monochromatic

#0A0D15 #171E31 #2B375B #3F5085 #5369AE

Accessibility & contrast

On white

11.67

#2B375B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#2B375B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B375B

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B375B	#FFFFFF	#000000	##FFFFFF
##2B375B	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#293B5C

Deuteranopia (green-blind)

#24365A

Tritanopia (blue-blind)

#173F44

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b375b;
/* rgb */ color: rgb(43, 55, 91);
/* oklch */ color: oklch(34.4% 0.065 268.8);

Tailwind

colors: {
  custom: {
    50: '#686d89',
    500: '#2b375b',
    950: '#000000',
  },
}

SCSS

$custom: #2b375b;
$custom-light: #686d89;
$custom-dark: #000000;

JSON

{
  "hex": "#2b375b",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 91
  },
  "hsl": {
    "h": 225,
    "s": 35.821,
    "l": 26.275
  },
  "oklch": {
    "l": 0.34429,
    "c": 0.0653,
    "h": 268.8
  },
  "luminance": 0.04001
}

Semantic roles & 50–950 ramp

primary

#2B375B

secondary

#8D7F55

accent

#B05CCC

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06070B

muted

#7A7A7C

Preview Lab

Preview with #2B375B

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

Preview Lab → · Contrast checker → · Palette generator →