#101B64#101B64

#101B64 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.3% C 0.127 H 268.8°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#101B64
RGB	rgb(16, 27, 100)
HSL	hsl(232, 72%, 23%)
HSV	hsv(232, 84%, 39%)
CMYK	cmyk(84%, 73%, 0%, 60.8%)
CIE-LAB	lab(14.48, 24.96, -44.01)
CIE-LCH	lch(14.48, 50.59, 299.56°)
OKLab	oklab(27.28% -0.0027 -0.1274)
OKLCH	oklch(27.28% 0.127 268.8)
XYZ	xyz(2.9051, 1.8138, 12.2511)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B64 #645910

analogous

#104564 #101B64 #2F1064

triadic

#101B64 #64101B #1B6410

tetradic

#101B64 #641045 #645910 #10642F

square

#101B64 #641045 #645910 #10642F

split-complementary

#101B64 #642F10 #456410

monochromatic

#04071A #080D2F #101B64 #182999 #2137CE

Accessibility & contrast

On white

15.41

#101B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#101B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B64

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B64	#FFFFFF	#000000	##FFFFFF
##101B64	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002966

Deuteranopia (green-blind)

#002163

Tritanopia (blue-blind)

#002F3D

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #101b64;
/* rgb */ color: rgb(16, 27, 100);
/* oklch */ color: oklch(27.3% 0.127 268.8);

Tailwind

colors: {
  custom: {
    50: '#5f5791',
    500: '#101b64',
    950: '#000000',
  },
}

SCSS

$custom: #101b64;
$custom-light: #5f5791;
$custom-dark: #000000;

JSON

{
  "hex": "#101b64",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 100
  },
  "hsl": {
    "h": 232.143,
    "s": 72.414,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27282,
    "c": 0.12748,
    "h": 268.8
  },
  "luminance": 0.01814
}

Semantic roles & 50–950 ramp

primary

#101B64

secondary

#9D8F33

accent

#D739EF

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#05030D

muted

#79787E

Preview Lab

Preview with #101B64

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

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