#10315B#10315B

#10315B is a dark, moderate cyan. Relative luminance 0.031; OKLCH L 31.4% C 0.084 H 256.0°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#10315B
RGB	rgb(16, 49, 91)
HSL	hsl(214, 70%, 21%)
HSV	hsv(214, 82%, 36%)
CMYK	cmyk(82.4%, 46.2%, 0%, 64.3%)
CIE-LAB	lab(20.29, 5.02, -28.61)
CIE-LCH	lch(20.29, 29.05, 279.96°)
OKLab	oklab(31.42% -0.0203 -0.0819)
OKLCH	oklch(31.42% 0.084 256)
XYZ	xyz(3.1996, 3.0617, 10.3178)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10315B #5B3A10

analogous

#10565B #10315B #14105B

triadic

#10315B #5B1031 #315B10

tetradic

#10315B #5B1056 #5B3A10 #105B14

square

#10315B #5B1056 #5B3A10 #105B14

split-complementary

#10315B #5B1410 #565B10

monochromatic

#050E1A #071527 #10315B #194D8F #2269C3

Accessibility & contrast

On white

13.02

#10315B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#10315B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10315B

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10315B	#FFFFFF	#000000	##FFFFFF
##10315B	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C355D

Deuteranopia (green-blind)

#0E2E5A

Tritanopia (blue-blind)

#003B41

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #10315b;
/* rgb */ color: rgb(16, 49, 91);
/* oklch */ color: oklch(31.4% 0.084 256.0);

Tailwind

colors: {
  custom: {
    50: '#5b688a',
    500: '#10315b',
    950: '#000000',
  },
}

SCSS

$custom: #10315b;
$custom-light: #5b688a;
$custom-dark: #000000;

JSON

{
  "hex": "#10315b",
  "rgb": {
    "r": 16,
    "g": 49,
    "b": 91
  },
  "hsl": {
    "h": 213.6,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.31415,
    "c": 0.08439,
    "h": 256
  },
  "luminance": 0.03062
}

Semantic roles & 50–950 ramp

primary

#10315B

secondary

#946933

accent

#9F3BED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060B

muted

#797A7C

Preview Lab

Preview with #10315B

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

Preview Lab → · Contrast checker → · Palette generator →