#101F51#101F51

#101F51 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.2% C 0.094 H 267.0°. Best body text is #FFFFFF at 15.71:1 contrast (WCAG AA passes).

Color values

HEX	#101F51
RGB	rgb(16, 31, 81)
HSL	hsl(226, 67%, 19%)
HSV	hsv(226, 80%, 32%)
CMYK	cmyk(80.2%, 61.7%, 0%, 68.2%)
CIE-LAB	lab(13.73, 14.08, -32.48)
CIE-LCH	lch(13.73, 35.40, 293.44°)
OKLab	oklab(26.16% -0.005 -0.0936)
OKLCH	oklch(26.16% 0.094 267)
XYZ	xyz(2.1884, 1.6840, 7.9927)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F51 #514210

analogous

#104051 #101F51 #221051

triadic

#101F51 #51101F #1F5110

tetradic

#101F51 #511040 #514210 #105122

square

#101F51 #511040 #514210 #105122

split-complementary

#101F51 #512210 #405110

monochromatic

#050A1A #060B1E #101F51 #1A3384 #2446B7

Accessibility & contrast

On white

15.71

#101F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#101F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F51

15.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F51	#FFFFFF	#000000	##FFFFFF
##101F51	1.00	15.71	1.34	15.71
#FFFFFF	15.71	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002653

Deuteranopia (green-blind)

#002050

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #101f51;
/* rgb */ color: rgb(16, 31, 81);
/* oklch */ color: oklch(26.2% 0.094 267.0);

Tailwind

colors: {
  custom: {
    50: '#595a82',
    500: '#101f51',
    950: '#000000',
  },
}

SCSS

$custom: #101f51;
$custom-light: #595a82;
$custom-dark: #000000;

JSON

{
  "hex": "#101f51",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 81
  },
  "hsl": {
    "h": 226.154,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.26156,
    "c": 0.09377,
    "h": 267
  },
  "luminance": 0.01684
}

Semantic roles & 50–950 ramp

primary

#101F51

secondary

#8B7632

accent

#C23EEA

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #101F51

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

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