#10175A#10175A

#10175A is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.118 H 270.3°. Best body text is #FFFFFF at 16.25:1 contrast (WCAG AA passes).

Color values

HEX	#10175A
RGB	rgb(16, 23, 90)
HSL	hsl(234, 70%, 21%)
HSV	hsv(234, 82%, 35%)
CMYK	cmyk(82.2%, 74.4%, 0%, 64.7%)
CIE-LAB	lab(12.36, 23.74, -40.82)
CIE-LCH	lch(12.36, 47.22, 300.18°)
OKLab	oklab(25.42% 0.0006 -0.1182)
OKLCH	oklch(25.42% 0.118 270.3)
XYZ	xyz(2.3649, 1.4609, 9.8282)
Luminance	0.0146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10175A #5A5310

analogous

#103C5A #10175A #2E105A

triadic

#10175A #5A1017 #175A10

tetradic

#10175A #5A103C #5A5310 #105A2E

square

#10175A #5A103C #5A5310 #105A2E

split-complementary

#10175A #5A2E10 #3C5A10

monochromatic

#05071A #070A26 #10175A #19248E #2232C2

Accessibility & contrast

On white

16.25

#10175A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#10175A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10175A

16.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10175A	#FFFFFF	#000000	##FFFFFF
##10175A	1.00	16.25	1.29	16.25
#FFFFFF	16.25	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00245C

Deuteranopia (green-blind)

#001D59

Tritanopia (blue-blind)

#002936

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #10175a;
/* rgb */ color: rgb(16, 23, 90);
/* oklch */ color: oklch(25.4% 0.118 270.3);

Tailwind

colors: {
  custom: {
    50: '#5d5489',
    500: '#10175a',
    950: '#000000',
  },
}

SCSS

$custom: #10175a;
$custom-light: #5d5489;
$custom-dark: #000000;

JSON

{
  "hex": "#10175a",
  "rgb": {
    "r": 16,
    "g": 23,
    "b": 90
  },
  "hsl": {
    "h": 234.324,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25416,
    "c": 0.11817,
    "h": 270.3
  },
  "luminance": 0.01461
}

Semantic roles & 50–950 ramp

primary

#10175A

secondary

#938A33

accent

#DC3BED

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05020C

muted

#79787D

Preview Lab

Preview with #10175A

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

Preview Lab → · Contrast checker → · Palette generator →