#101F64#101F64

#101F64 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.1% C 0.122 H 267.7°. Best body text is #FFFFFF at 14.98:1 contrast (WCAG AA passes).

Color values

HEX	#101F64
RGB	rgb(16, 31, 100)
HSL	hsl(229, 72%, 23%)
HSV	hsv(229, 84%, 39%)
CMYK	cmyk(84%, 69%, 0%, 60.8%)
CIE-LAB	lab(15.54, 22.12, -42.26)
CIE-LCH	lch(15.54, 47.70, 297.63°)
OKLab	oklab(28.06% -0.005 -0.1223)
OKLCH	oklch(28.06% 0.122 267.7)
XYZ	xyz(3.0031, 2.0099, 12.2838)
Luminance	0.0201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F64 #645510

analogous

#104964 #101F64 #2B1064

triadic

#101F64 #64101F #1F6410

tetradic

#101F64 #641049 #645510 #10642B

square

#101F64 #641049 #645510 #10642B

split-complementary

#101F64 #642B10 #496410

monochromatic

#04081A #080F2F #101F64 #182F99 #2140CE

Accessibility & contrast

On white

14.98

#101F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#101F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F64

14.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F64	#FFFFFF	#000000	##FFFFFF
##101F64	1.00	14.98	1.40	14.98
#FFFFFF	14.98	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B66

Deuteranopia (green-blind)

#002363

Tritanopia (blue-blind)

#00313E

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #101f64;
/* rgb */ color: rgb(16, 31, 100);
/* oklch */ color: oklch(28.1% 0.122 267.7);

Tailwind

colors: {
  custom: {
    50: '#5f5a91',
    500: '#101f64',
    950: '#000000',
  },
}

SCSS

$custom: #101f64;
$custom-light: #5f5a91;
$custom-dark: #000000;

JSON

{
  "hex": "#101f64",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 100
  },
  "hsl": {
    "h": 229.286,
    "s": 72.414,
    "l": 22.745
  },
  "oklch": {
    "l": 0.28056,
    "c": 0.12243,
    "h": 267.7
  },
  "luminance": 0.0201
}

Semantic roles & 50–950 ramp

primary

#101F64

secondary

#9D8A33

accent

#CF39EF

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#05030D

muted

#79787E

Preview Lab

Preview with #101F64

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

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