#100F66#100F66

#100F66 is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.6% C 0.143 H 270.7°. Best body text is #FFFFFF at 16.38:1 contrast (WCAG AA passes).

Color values

HEX	#100F66
RGB	rgb(16, 15, 102)
HSL	hsl(241, 74%, 23%)
HSV	hsv(241, 85%, 40%)
CMYK	cmyk(84.3%, 85.3%, 0%, 60%)
CIE-LAB	lab(12.03, 33.27, -49.38)
CIE-LCH	lch(12.03, 59.54, 303.98°)
OKLab	oklab(25.61% 0.0017 -0.1429)
OKLCH	oklch(25.61% 0.143 270.7)
XYZ	xyz(2.7820, 1.4108, 12.6935)
Luminance	0.0141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100F66 #65660F

analogous

#0F3966 #100F66 #3C0F66

triadic

#100F66 #66100F #0F6610

tetradic

#100F66 #660F39 #65660F #0F663C

square

#100F66 #660F39 #65660F #0F663C

split-complementary

#100F66 #663C0F #39660F

monochromatic

#04041B #080731 #100F66 #18179B #211FD1

Accessibility & contrast

On white

16.38

#100F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#100F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F66

16.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100F66	#FFFFFF	#000000	##FFFFFF
##100F66	1.00	16.38	1.28	16.38
#FFFFFF	16.38	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002468

Deuteranopia (green-blind)

#001B65

Tritanopia (blue-blind)

#002A3B

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #100f66;
/* rgb */ color: rgb(16, 15, 102);
/* oklch */ color: oklch(25.6% 0.143 270.7);

Tailwind

colors: {
  custom: {
    50: '#615093',
    500: '#100f66',
    950: '#000000',
  },
}

SCSS

$custom: #100f66;
$custom-light: #615093;
$custom-dark: #000000;

JSON

{
  "hex": "#100f66",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 102
  },
  "hsl": {
    "h": 240.69,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.2561,
    "c": 0.14295,
    "h": 270.7
  },
  "luminance": 0.01411
}

Semantic roles & 50–950 ramp

primary

#100F66

secondary

#9D9F32

accent

#F137EF

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #100F66

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

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