#101D40#101D40

#101D40 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.2% C 0.069 H 266.1°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#101D40
RGB	rgb(16, 29, 64)
HSL	hsl(224, 60%, 16%)
HSV	hsv(224, 75%, 25%)
CMYK	cmyk(75%, 54.7%, 0%, 74.9%)
CIE-LAB	lab(11.68, 8.24, -24.03)
CIE-LCH	lch(11.68, 25.40, 288.93°)
OKLab	oklab(24.15% -0.0047 -0.0688)
OKLCH	oklch(24.15% 0.069 266.1)
XYZ	xyz(1.5781, 1.3589, 5.0286)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D40 #403310

analogous

#103540 #101D40 #1B1040

triadic

#101D40 #40101D #1D4010

tetradic

#101D40 #401035 #403310 #10401B

square

#101D40 #401035 #403310 #10401B

split-complementary

#101D40 #401B10 #354010

monochromatic

#060B18 #060B18 #101D40 #1C3371 #2849A2

Accessibility & contrast

On white

16.51

#101D40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101D40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D40

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D40	#FFFFFF	#000000	##FFFFFF
##101D40	1.00	16.51	1.27	16.51
#FFFFFF	16.51	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B2141

Deuteranopia (green-blind)

#031D3F

Tritanopia (blue-blind)

#00252B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101d40;
/* rgb */ color: rgb(16, 29, 64);
/* oklch */ color: oklch(24.2% 0.069 266.1);

Tailwind

colors: {
  custom: {
    50: '#555875',
    500: '#101d40',
    950: '#000000',
  },
}

SCSS

$custom: #101d40;
$custom-light: #555875;
$custom-dark: #000000;

JSON

{
  "hex": "#101d40",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 64
  },
  "hsl": {
    "h": 223.75,
    "s": 60,
    "l": 15.686
  },
  "oklch": {
    "l": 0.24155,
    "c": 0.06898,
    "h": 266.1
  },
  "luminance": 0.01359
}

Semantic roles & 50–950 ramp

primary

#101D40

secondary

#7A6632

accent

#B845E3

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101D40

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

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