#10217E#10217E

#10217E is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.3% C 0.156 H 267.1°. Best body text is #FFFFFF at 13.63:1 contrast (WCAG AA passes).

Color values

HEX	#10217E
RGB	rgb(16, 33, 126)
HSL	hsl(231, 77%, 28%)
HSV	hsv(231, 87%, 49%)
CMYK	cmyk(87.3%, 73.8%, 0%, 50.6%)
CIE-LAB	lab(18.82, 31.11, -53.70)
CIE-LCH	lch(18.82, 62.06, 300.09°)
OKLab	oklab(31.27% -0.0079 -0.1557)
OKLCH	oklch(31.27% 0.156 267.1)
XYZ	xyz(4.5221, 2.7037, 20.0181)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10217E #7E6D10

analogous

#10587E #10217E #36107E

triadic

#10217E #7E1021 #217E10

tetradic

#10217E #7E1058 #7E6D10 #107E36

square

#10217E #7E1058 #7E6D10 #107E36

split-complementary

#10217E #7E3610 #587E10

monochromatic

#03071B #091348 #10217E #172FB4 #2542E3

Accessibility & contrast

On white

13.63

#10217E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#10217E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10217E

13.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10217E	#FFFFFF	#000000	##FFFFFF
##10217E	1.00	13.63	1.54	13.63
#FFFFFF	13.63	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003381

Deuteranopia (green-blind)

#00287C

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #10217e;
/* rgb */ color: rgb(16, 33, 126);
/* oklch */ color: oklch(31.3% 0.156 267.1);

Tailwind

colors: {
  custom: {
    50: '#665ca4',
    500: '#10217e',
    950: '#000000',
  },
}

SCSS

$custom: #10217e;
$custom-light: #665ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#10217e",
  "rgb": {
    "r": 16,
    "g": 33,
    "b": 126
  },
  "hsl": {
    "h": 230.727,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31273,
    "c": 0.15587,
    "h": 267.1
  },
  "luminance": 0.02704
}

Semantic roles & 50–950 ramp

primary

#10217E

secondary

#B4A136

accent

#D634F4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #10217E

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

Preview Lab → · Contrast checker → · Palette generator →