#10155B#10155B

#10155B is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.2% C 0.122 H 270.7°. Best body text is #FFFFFF at 16.40:1 contrast (WCAG AA passes).

Color values

HEX	#10155B
RGB	rgb(16, 21, 91)
HSL	hsl(236, 70%, 21%)
HSV	hsv(236, 82%, 36%)
CMYK	cmyk(82.4%, 76.9%, 0%, 64.3%)
CIE-LAB	lab(11.97, 25.51, -42.14)
CIE-LCH	lch(11.97, 49.26, 301.19°)
OKLab	oklab(25.17% 0.0016 -0.122)
OKLCH	oklch(25.17% 0.122 270.7)
XYZ	xyz(2.3695, 1.4016, 10.0411)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10155B #5B5610

analogous

#103A5B #10155B #30105B

triadic

#10155B #5B1015 #155B10

tetradic

#10155B #5B103A #5B5610 #105B30

square

#10155B #5B103A #5B5610 #105B30

split-complementary

#10155B #5B3010 #3A5B10

monochromatic

#05061A #070927 #10155B #19218F #222DC3

Accessibility & contrast

On white

16.40

#10155B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#10155B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10155B

16.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10155B	#FFFFFF	#000000	##FFFFFF
##10155B	1.00	16.40	1.28	16.40
#FFFFFF	16.40	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235D

Deuteranopia (green-blind)

#001C5A

Tritanopia (blue-blind)

#002936

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #10155b;
/* rgb */ color: rgb(16, 21, 91);
/* oklch */ color: oklch(25.2% 0.122 270.7);

Tailwind

colors: {
  custom: {
    50: '#5d538a',
    500: '#10155b',
    950: '#000000',
  },
}

SCSS

$custom: #10155b;
$custom-light: #5d538a;
$custom-dark: #000000;

JSON

{
  "hex": "#10155b",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 91
  },
  "hsl": {
    "h": 236,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25169,
    "c": 0.12201,
    "h": 270.7
  },
  "luminance": 0.01402
}

Semantic roles & 50–950 ramp

primary

#10155B

secondary

#948E33

accent

#E13BED

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #10155B

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

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