#030C21#030C21

#030C21 is a very dark, muted blue. Relative luminance 0.004; OKLCH L 15.9% C 0.047 H 261.3°. Best body text is #FFFFFF at 19.47:1 contrast (WCAG AA passes).

Color values

HEX	#030C21
RGB	rgb(3, 12, 33)
HSL	hsl(222, 83%, 7%)
HSV	hsv(222, 91%, 13%)
CMYK	cmyk(90.9%, 63.6%, 0%, 87.1%)
CIE-LAB	lab(3.54, 2.90, -14.15)
CIE-LCH	lch(3.54, 14.45, 281.57°)
OKLab	oklab(15.92% -0.0072 -0.0468)
OKLCH	oklch(15.92% 0.047 261.3)
XYZ	xyz(0.4434, 0.3921, 1.4909)
Luminance	0.0039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#030C21 #211803

analogous

#031B21 #030C21 #090321

triadic

#030C21 #21030C #0C2103

tetradic

#030C21 #21031B #211803 #032109

square

#030C21 #21031B #211803 #032109

split-complementary

#030C21 #210903 #1B2103

monochromatic

#030A1C #030A1C #030C21 #082059 #0D3591

Accessibility & contrast

On white

19.47

#030C21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#030C21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #030C21

19.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##030C21	#FFFFFF	#000000	##FFFFFF
##030C21	1.00	19.47	1.08	19.47
#FFFFFF	19.47	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#030E22

Deuteranopia (green-blind)

#000B21

Tritanopia (blue-blind)

#001114

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #030c21;
/* rgb */ color: rgb(3, 12, 33);
/* oklch */ color: oklch(15.9% 0.047 261.3);

Tailwind

colors: {
  custom: {
    50: '#474c5c',
    500: '#030c21',
    950: '#000000',
  },
}

SCSS

$custom: #030c21;
$custom-light: #474c5c;
$custom-dark: #000000;

JSON

{
  "hex": "#030c21",
  "rgb": {
    "r": 3,
    "g": 12,
    "b": 33
  },
  "hsl": {
    "h": 222,
    "s": 83.333,
    "l": 7.059
  },
  "oklch": {
    "l": 0.15923,
    "c": 0.04737,
    "h": 261.3
  },
  "luminance": 0.00392
}

Semantic roles & 50–950 ramp

primary

#030C21

secondary

#654F1B

accent

#BD2EFA

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #030C21

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

Preview Lab → · Contrast checker → · Palette generator →