#101F75#101F75

#101F75 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 29.9% C 0.146 H 267.6°. Best body text is #FFFFFF at 14.24:1 contrast (WCAG AA passes).

Color values

HEX	#101F75
RGB	rgb(16, 31, 117)
HSL	hsl(231, 76%, 26%)
HSV	hsv(231, 86%, 46%)
CMYK	cmyk(86.3%, 73.5%, 0%, 54.1%)
CIE-LAB	lab(17.34, 28.95, -50.38)
CIE-LCH	lch(17.34, 58.10, 299.88°)
OKLab	oklab(29.91% -0.0062 -0.146)
OKLCH	oklch(29.91% 0.146 267.6)
XYZ	xyz(3.9134, 2.3740, 17.0781)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F75 #756610

analogous

#105175 #101F75 #331075

triadic

#101F75 #75101F #1F7510

tetradic

#101F75 #751051 #756610 #107533

square

#101F75 #751051 #756610 #107533

split-complementary

#101F75 #753310 #517510

monochromatic

#04071B #09113F #101F75 #172DAB #1F3CE0

Accessibility & contrast

On white

14.24

#101F75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#101F75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F75

14.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F75	#FFFFFF	#000000	##FFFFFF
##101F75	1.00	14.24	1.47	14.24
#FFFFFF	14.24	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003078

Deuteranopia (green-blind)

#002673

Tritanopia (blue-blind)

#003747

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #101f75;
/* rgb */ color: rgb(16, 31, 117);
/* oklch */ color: oklch(29.9% 0.146 267.6);

Tailwind

colors: {
  custom: {
    50: '#645b9e',
    500: '#101f75',
    950: '#000000',
  },
}

SCSS

$custom: #101f75;
$custom-light: #645b9e;
$custom-dark: #000000;

JSON

{
  "hex": "#101f75",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 117
  },
  "hsl": {
    "h": 231.089,
    "s": 75.94,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29911,
    "c": 0.14614,
    "h": 267.6
  },
  "luminance": 0.02374
}

Semantic roles & 50–950 ramp

primary

#101F75

secondary

#AC9A35

accent

#D635F3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #101F75

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

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