#101959#101959

#101959 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.114 H 269.7°. Best body text is #FFFFFF at 16.09:1 contrast (WCAG AA passes).

Color values

HEX	#101959
RGB	rgb(16, 25, 89)
HSL	hsl(233, 70%, 21%)
HSV	hsv(233, 82%, 35%)
CMYK	cmyk(82%, 71.9%, 0%, 65.1%)
CIE-LAB	lab(12.77, 21.92, -39.46)
CIE-LCH	lch(12.77, 45.14, 299.05°)
OKLab	oklab(25.69% -0.0005 -0.1142)
OKLCH	oklch(25.69% 0.114 269.7)
XYZ	xyz(2.3639, 1.5264, 9.6193)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101959 #595010

analogous

#103D59 #101959 #2B1059

triadic

#101959 #591019 #195910

tetradic

#101959 #59103D #595010 #10592B

square

#101959 #59103D #595010 #10592B

split-complementary

#101959 #592B10 #3D5910

monochromatic

#05071A #070A25 #101959 #19288D #2336C1

Accessibility & contrast

On white

16.09

#101959 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#101959 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101959

16.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101959	#FFFFFF	#000000	##FFFFFF
##101959	1.00	16.09	1.31	16.09
#FFFFFF	16.09	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255B

Deuteranopia (green-blind)

#001E58

Tritanopia (blue-blind)

#002A36

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101959;
/* rgb */ color: rgb(16, 25, 89);
/* oklch */ color: oklch(25.7% 0.114 269.7);

Tailwind

colors: {
  custom: {
    50: '#5c5589',
    500: '#101959',
    950: '#000000',
  },
}

SCSS

$custom: #101959;
$custom-light: #5c5589;
$custom-dark: #000000;

JSON

{
  "hex": "#101959",
  "rgb": {
    "r": 16,
    "g": 25,
    "b": 89
  },
  "hsl": {
    "h": 232.603,
    "s": 69.524,
    "l": 20.588
  },
  "oklch": {
    "l": 0.25686,
    "c": 0.11419,
    "h": 269.7
  },
  "luminance": 0.01527
}

Semantic roles & 50–950 ramp

primary

#101959

secondary

#928633

accent

#D73BEC

background

#F5F5F8

surface

#E9E8F0

border

#C5C4CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #101959

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

Preview Lab → · Contrast checker → · Palette generator →