#10155A#10155A

#10155A is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.1% C 0.121 H 270.8°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#10155A
RGB	rgb(16, 21, 90)
HSL	hsl(236, 70%, 21%)
HSV	hsv(236, 82%, 35%)
CMYK	cmyk(82.2%, 76.7%, 0%, 64.7%)
CIE-LAB	lab(11.85, 25.12, -41.65)
CIE-LCH	lch(11.85, 48.64, 301.09°)
OKLab	oklab(25.05% 0.0017 -0.1206)
OKLCH	oklch(25.05% 0.121 270.8)
XYZ	xyz(2.3267, 1.3844, 9.8155)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10155A #5A5510

analogous

#103A5A #10155A #30105A

triadic

#10155A #5A1015 #155A10

tetradic

#10155A #5A103A #5A5510 #105A30

square

#10155A #5A103A #5A5510 #105A30

split-complementary

#10155A #5A3010 #3A5A10

monochromatic

#05061A #070926 #10155A #19218E #222DC2

Accessibility & contrast

On white

16.44

#10155A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#10155A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10155A

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10155A	#FFFFFF	#000000	##FFFFFF
##10155A	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235C

Deuteranopia (green-blind)

#001C59

Tritanopia (blue-blind)

#002836

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #10155a;
/* rgb */ color: rgb(16, 21, 90);
/* oklch */ color: oklch(25.1% 0.121 270.8);

Tailwind

colors: {
  custom: {
    50: '#5d5389',
    500: '#10155a',
    950: '#000000',
  },
}

SCSS

$custom: #10155a;
$custom-light: #5d5389;
$custom-dark: #000000;

JSON

{
  "hex": "#10155a",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 90
  },
  "hsl": {
    "h": 235.946,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25053,
    "c": 0.1206,
    "h": 270.8
  },
  "luminance": 0.01385
}

Semantic roles & 50–950 ramp

primary

#10155A

secondary

#938D33

accent

#E13BED

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #10155A

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

Preview Lab → · Contrast checker → · Palette generator →