#101957#101957

#101957 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.5% C 0.111 H 269.8°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#101957
RGB	rgb(16, 25, 87)
HSL	hsl(232, 69%, 20%)
HSV	hsv(232, 82%, 34%)
CMYK	cmyk(81.6%, 71.3%, 0%, 65.9%)
CIE-LAB	lab(12.57, 21.10, -38.46)
CIE-LCH	lch(12.57, 43.86, 298.75°)
OKLab	oklab(25.47% -0.0004 -0.1112)
OKLCH	oklch(25.47% 0.111 269.8)
XYZ	xyz(2.2810, 1.4933, 9.1830)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101957 #574E10

analogous

#103D57 #101957 #2A1057

triadic

#101957 #571019 #195710

tetradic

#101957 #57103D #574E10 #10572A

square

#101957 #57103D #574E10 #10572A

split-complementary

#101957 #572A10 #3D5710

monochromatic

#05071A #060A23 #101957 #1A288B #2337BE

Accessibility & contrast

On white

16.17

#101957 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#101957 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101957

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101957	#FFFFFF	#000000	##FFFFFF
##101957	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002459

Deuteranopia (green-blind)

#001D56

Tritanopia (blue-blind)

#002A35

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101957;
/* rgb */ color: rgb(16, 25, 87);
/* oklch */ color: oklch(25.5% 0.111 269.8);

Tailwind

colors: {
  custom: {
    50: '#5c5587',
    500: '#101957',
    950: '#000000',
  },
}

SCSS

$custom: #101957;
$custom-light: #5c5587;
$custom-dark: #000000;

JSON

{
  "hex": "#101957",
  "rgb": {
    "r": 16,
    "g": 25,
    "b": 87
  },
  "hsl": {
    "h": 232.394,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.25469,
    "c": 0.11125,
    "h": 269.8
  },
  "luminance": 0.01494
}

Semantic roles & 50–950 ramp

primary

#101957

secondary

#908432

accent

#D53CEC

background

#F5F4F8

surface

#E9E8EF

border

#C5C4CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #101957

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

Preview Lab → · Contrast checker → · Palette generator →