#101657#101657

#101657 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.115 H 270.8°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#101657
RGB	rgb(16, 22, 87)
HSL	hsl(235, 69%, 20%)
HSV	hsv(235, 82%, 34%)
CMYK	cmyk(81.6%, 74.7%, 0%, 65.9%)
CIE-LAB	lab(11.77, 23.24, -39.77)
CIE-LCH	lch(11.77, 46.06, 300.30°)
OKLab	oklab(24.89% 0.0015 -0.1151)
OKLCH	oklch(24.89% 0.115 270.8)
XYZ	xyz(2.2203, 1.3719, 9.1628)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101657 #575110

analogous

#103957 #101657 #2E1057

triadic

#101657 #571016 #165710

tetradic

#101657 #571039 #575110 #10572E

square

#101657 #571039 #575110 #10572E

split-complementary

#101657 #572E10 #395710

monochromatic

#05071A #060923 #101657 #1A238B #2330BE

Accessibility & contrast

On white

16.48

#101657 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#101657 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101657

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101657	#FFFFFF	#000000	##FFFFFF
##101657	1.00	16.48	1.27	16.48
#FFFFFF	16.48	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002259

Deuteranopia (green-blind)

#001C56

Tritanopia (blue-blind)

#002834

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101657;
/* rgb */ color: rgb(16, 22, 87);
/* oklch */ color: oklch(24.9% 0.115 270.8);

Tailwind

colors: {
  custom: {
    50: '#5c5387',
    500: '#101657',
    950: '#000000',
  },
}

SCSS

$custom: #101657;
$custom-light: #5c5387;
$custom-dark: #000000;

JSON

{
  "hex": "#101657",
  "rgb": {
    "r": 16,
    "g": 22,
    "b": 87
  },
  "hsl": {
    "h": 234.93,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.24891,
    "c": 0.1151,
    "h": 270.8
  },
  "luminance": 0.01372
}

Semantic roles & 50–950 ramp

primary

#101657

secondary

#908832

accent

#DD3CEC

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #101657

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

Preview Lab → · Contrast checker → · Palette generator →