#101B41#101B41

#101B41 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.7% C 0.074 H 268.2°. Best body text is #FFFFFF at 16.73:1 contrast (WCAG AA passes).

Color values

HEX	#101B41
RGB	rgb(16, 27, 65)
HSL	hsl(227, 60%, 16%)
HSV	hsv(227, 75%, 25%)
CMYK	cmyk(75.4%, 58.5%, 0%, 74.5%)
CIE-LAB	lab(11.10, 10.23, -25.67)
CIE-LCH	lch(11.10, 27.63, 291.73°)
OKLab	oklab(23.74% -0.0023 -0.0737)
OKLCH	oklch(23.74% 0.074 268.2)
XYZ	xyz(1.5594, 1.2755, 5.1640)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B41 #413610

analogous

#103341 #101B41 #1D1041

triadic

#101B41 #41101B #1B4110

tetradic

#101B41 #411033 #413610 #10411D

square

#101B41 #411033 #413610 #10411D

split-complementary

#101B41 #411D10 #334110

monochromatic

#060A19 #060A19 #101B41 #1C2F72 #2844A3

Accessibility & contrast

On white

16.73

#101B41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#101B41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B41

16.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B41	#FFFFFF	#000000	##FFFFFF
##101B41	1.00	16.73	1.26	16.73
#FFFFFF	16.73	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#052042

Deuteranopia (green-blind)

#001C40

Tritanopia (blue-blind)

#00242B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #101b41;
/* rgb */ color: rgb(16, 27, 65);
/* oklch */ color: oklch(23.7% 0.074 268.2);

Tailwind

colors: {
  custom: {
    50: '#555676',
    500: '#101b41',
    950: '#000000',
  },
}

SCSS

$custom: #101b41;
$custom-light: #555676;
$custom-dark: #000000;

JSON

{
  "hex": "#101b41",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 65
  },
  "hsl": {
    "h": 226.531,
    "s": 60.494,
    "l": 15.882
  },
  "oklch": {
    "l": 0.23741,
    "c": 0.07371,
    "h": 268.2
  },
  "luminance": 0.01276
}

Semantic roles & 50–950 ramp

primary

#101B41

secondary

#7B6B32

accent

#C044E4

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #101B41

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

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