#10213B#10213B

#10213B is a very dark, muted blue. Relative luminance 0.015; OKLCH L 24.8% C 0.055 H 258.6°. Best body text is #FFFFFF at 16.12:1 contrast (WCAG AA passes).

Color values

HEX	#10213B
RGB	rgb(16, 33, 59)
HSL	hsl(216, 57%, 15%)
HSV	hsv(216, 73%, 23%)
CMYK	cmyk(72.9%, 44.1%, 0%, 76.9%)
CIE-LAB	lab(12.69, 3.03, -18.89)
CIE-LCH	lch(12.69, 19.13, 279.10°)
OKLab	oklab(24.82% -0.0108 -0.0536)
OKLCH	oklch(24.82% 0.055 258.6)
XYZ	xyz(1.5467, 1.5135, 4.3474)
Luminance	0.0151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10213B #3B2A10

analogous

#10373B #10213B #15103B

triadic

#10213B #3B1021 #213B10

tetradic

#10213B #3B1037 #3B2A10 #103B15

square

#10213B #3B1037 #3B2A10 #103B15

split-complementary

#10213B #3B1510 #373B10

monochromatic

#070D18 #070D18 #10213B #1D3C6B #2A579B

Accessibility & contrast

On white

16.12

#10213B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#10213B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10213B

16.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10213B	#FFFFFF	#000000	##FFFFFF
##10213B	1.00	16.12	1.30	16.12
#FFFFFF	16.12	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16233C

Deuteranopia (green-blind)

#101F3A

Tritanopia (blue-blind)

#00272B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #10213b;
/* rgb */ color: rgb(16, 33, 59);
/* oklch */ color: oklch(24.8% 0.055 258.6);

Tailwind

colors: {
  custom: {
    50: '#535b71',
    500: '#10213b',
    950: '#000000',
  },
}

SCSS

$custom: #10213b;
$custom-light: #535b71;
$custom-dark: #000000;

JSON

{
  "hex": "#10213b",
  "rgb": {
    "r": 16,
    "g": 33,
    "b": 59
  },
  "hsl": {
    "h": 216.279,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.24819,
    "c": 0.05472,
    "h": 258.6
  },
  "luminance": 0.01514
}

Semantic roles & 50–950 ramp

primary

#10213B

secondary

#755A32

accent

#A447E1

background

#F4F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030407

muted

#78797A

Preview Lab

Preview with #10213B

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

Preview Lab → · Contrast checker → · Palette generator →