#2B313A#2B313A

#2B313A is a dark, near-neutral blue. Relative luminance 0.030; OKLCH L 31.1% C 0.018 H 258.4°. Best body text is #FFFFFF at 13.10:1 contrast (WCAG AA passes).

Color values

HEX	#2B313A
RGB	rgb(43, 49, 58)
HSL	hsl(216, 15%, 20%)
HSV	hsv(216, 26%, 23%)
CMYK	cmyk(25.9%, 15.5%, 0%, 77.3%)
CIE-LAB	lab(20.11, -0.15, -6.55)
CIE-LCH	lch(20.11, 6.56, 268.71°)
OKLab	oklab(31.12% -0.0037 -0.0179)
OKLCH	oklch(31.12% 0.018 258.4)
XYZ	xyz(2.8581, 3.0156, 4.4337)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B313A #3A342B

analogous

#2B393A #2B313A #2D2B3A

triadic

#2B313A #3A2B31 #313A2B

tetradic

#2B313A #3A2B39 #3A342B #2B3A2D

square

#2B313A #3A2B39 #3A342B #2B3A2D

split-complementary

#2B313A #3A2D2B #393A2B

monochromatic

#0D0F12 #111317 #2B313A #454F5D #5F6C80

Accessibility & contrast

On white

13.10

#2B313A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#2B313A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B313A

13.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B313A	#FFFFFF	#000000	##FFFFFF
##2B313A	1.00	13.10	1.60	13.10
#FFFFFF	13.10	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E313A

Deuteranopia (green-blind)

#2C303A

Tritanopia (blue-blind)

#273334

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2b313a;
/* rgb */ color: rgb(43, 49, 58);
/* oklch */ color: oklch(31.1% 0.018 258.4);

Tailwind

colors: {
  custom: {
    50: '#646970',
    500: '#2b313a',
    950: '#000000',
  },
}

SCSS

$custom: #2b313a;
$custom-light: #646970;
$custom-dark: #000000;

JSON

{
  "hex": "#2b313a",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 58
  },
  "hsl": {
    "h": 216,
    "s": 14.851,
    "l": 19.804
  },
  "oklch": {
    "l": 0.31115,
    "c": 0.01824,
    "h": 258.4
  },
  "luminance": 0.03016
}

Semantic roles & 50–950 ramp

primary

#2B313A

secondary

#6A6256

accent

#9B70B8

background

#F6F6F6

surface

#EBEBEC

border

#C6C6C7

text

#050607

muted

#7A7A7A

Preview Lab

Preview with #2B313A

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

Preview Lab → · Contrast checker → · Palette generator →