#101B83#101B83

#101B83 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.169 H 267.7°. Best body text is #FFFFFF at 13.94:1 contrast (WCAG AA passes).

Color values

HEX	#101B83
RGB	rgb(16, 27, 131)
HSL	hsl(234, 78%, 29%)
HSV	hsv(234, 88%, 51%)
CMYK	cmyk(87.8%, 79.4%, 0%, 48.6%)
CIE-LAB	lab(18.06, 36.71, -58.11)
CIE-LCH	lch(18.06, 68.73, 302.28°)
OKLab	oklab(30.91% -0.0068 -0.1684)
OKLCH	oklch(30.91% 0.169 267.7)
XYZ	xyz(4.7009, 2.5321, 21.7093)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B83 #837810

analogous

#105583 #101B83 #3F1083

triadic

#101B83 #83101B #1B8310

tetradic

#101B83 #831055 #837810 #10833F

square

#101B83 #831055 #837810 #10833F

split-complementary

#101B83 #833F10 #558310

monochromatic

#03061B #09104C #101B83 #1726BA #293BE5

Accessibility & contrast

On white

13.94

#101B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#101B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B83

13.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B83	#FFFFFF	#000000	##FFFFFF
##101B83	1.00	13.94	1.51	13.94
#FFFFFF	13.94	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003286

Deuteranopia (green-blind)

#002681

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #101b83;
/* rgb */ color: rgb(16, 27, 131);
/* oklch */ color: oklch(30.9% 0.169 267.7);

Tailwind

colors: {
  custom: {
    50: '#6959a8',
    500: '#101b83',
    950: '#000000',
  },
}

SCSS

$custom: #101b83;
$custom-light: #6959a8;
$custom-dark: #000000;

JSON

{
  "hex": "#101b83",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 131
  },
  "hsl": {
    "h": 234.261,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30907,
    "c": 0.16857,
    "h": 267.7
  },
  "luminance": 0.02533
}

Semantic roles & 50–950 ramp

primary

#101B83

secondary

#B9AC36

accent

#E233F5

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080310

muted

#7A787F

Preview Lab

Preview with #101B83

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

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