#101F43#101F43

#101F43 is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 24.9% C 0.071 H 264.7°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#101F43
RGB	rgb(16, 31, 67)
HSL	hsl(222, 61%, 16%)
HSV	hsv(222, 76%, 26%)
CMYK	cmyk(76.1%, 53.7%, 0%, 73.7%)
CIE-LAB	lab(12.58, 8.00, -24.69)
CIE-LCH	lch(12.58, 25.96, 287.95°)
OKLab	oklab(24.91% -0.0065 -0.0707)
OKLCH	oklch(24.91% 0.071 264.7)
XYZ	xyz(1.7164, 1.4952, 5.5072)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101F43 #433410

analogous

#103943 #101F43 #1B1043

triadic

#101F43 #43101F #1F4310

tetradic

#101F43 #431039 #433410 #10431B

square

#101F43 #431039 #433410 #10431B

split-complementary

#101F43 #431B10 #394310

monochromatic

#060B19 #060B19 #101F43 #1C3674 #284DA6

Accessibility & contrast

On white

16.17

#101F43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#101F43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F43

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101F43	#FFFFFF	#000000	##FFFFFF
##101F43	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C2344

Deuteranopia (green-blind)

#031E42

Tritanopia (blue-blind)

#00272D

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101f43;
/* rgb */ color: rgb(16, 31, 67);
/* oklch */ color: oklch(24.9% 0.071 264.7);

Tailwind

colors: {
  custom: {
    50: '#555a77',
    500: '#101f43',
    950: '#000000',
  },
}

SCSS

$custom: #101f43;
$custom-light: #555a77;
$custom-dark: #000000;

JSON

{
  "hex": "#101f43",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 67
  },
  "hsl": {
    "h": 222.353,
    "s": 61.446,
    "l": 16.275
  },
  "oklch": {
    "l": 0.24914,
    "c": 0.07104,
    "h": 264.7
  },
  "luminance": 0.01495
}

Semantic roles & 50–950 ramp

primary

#101F43

secondary

#7D6732

accent

#B543E5

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030309

muted

#78787B

Preview Lab

Preview with #101F43

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

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