#2B313F#2B313F

#2B313F is a dark, muted blue. Relative luminance 0.031; OKLCH L 31.4% C 0.027 H 266.7°. Best body text is #FFFFFF at 13.01:1 contrast (WCAG AA passes).

Color values

HEX	#2B313F
RGB	rgb(43, 49, 63)
HSL	hsl(222, 19%, 21%)
HSV	hsv(222, 32%, 25%)
CMYK	cmyk(31.7%, 22.2%, 0%, 75.3%)
CIE-LAB	lab(20.32, 1.32, -9.65)
CIE-LCH	lch(20.32, 9.74, 277.80°)
OKLab	oklab(31.35% -0.0015 -0.0265)
OKLCH	oklch(31.35% 0.027 266.7)
XYZ	xyz(2.9915, 3.0690, 5.1364)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B313F #3F392B

analogous

#2B3B3F #2B313F #2F2B3F

triadic

#2B313F #3F2B31 #313F2B

tetradic

#2B313F #3F2B3B #3F392B #2B3F2F

square

#2B313F #3F2B3B #3F392B #2B3F2F

split-complementary

#2B313F #3F2F2B #3B3F2B

monochromatic

#0C0E12 #12151B #2B313F #444D63 #5D6A88

Accessibility & contrast

On white

13.01

#2B313F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#2B313F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B313F

13.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B313F	#FFFFFF	#000000	##FFFFFF
##2B313F	1.00	13.01	1.61	13.01
#FFFFFF	13.01	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3240

Deuteranopia (green-blind)

#2B303F

Tritanopia (blue-blind)

#263436

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2b313f;
/* rgb */ color: rgb(43, 49, 63);
/* oklch */ color: oklch(31.4% 0.027 266.7);

Tailwind

colors: {
  custom: {
    50: '#646974',
    500: '#2b313f',
    950: '#000000',
  },
}

SCSS

$custom: #2b313f;
$custom-light: #646974;
$custom-dark: #000000;

JSON

{
  "hex": "#2b313f",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 63
  },
  "hsl": {
    "h": 222,
    "s": 18.868,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31351,
    "c": 0.02655,
    "h": 266.7
  },
  "luminance": 0.03069
}

Semantic roles & 50–950 ramp

primary

#2B313F

secondary

#706856

accent

#A46CBC

background

#F6F6F7

surface

#EBEBED

border

#C6C6C8

text

#050608

muted

#7A7A7B

Preview Lab

Preview with #2B313F

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

Preview Lab → · Contrast checker → · Palette generator →