#101D52#101D52

#101D52 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.8% C 0.098 H 268.1°. Best body text is #FFFFFF at 15.91:1 contrast (WCAG AA passes).

Color values

HEX	#101D52
RGB	rgb(16, 29, 82)
HSL	hsl(228, 67%, 19%)
HSV	hsv(228, 80%, 32%)
CMYK	cmyk(80.5%, 64.6%, 0%, 67.8%)
CIE-LAB	lab(13.22, 16.03, -34.00)
CIE-LCH	lch(13.22, 37.59, 295.24°)
OKLab	oklab(25.8% -0.0032 -0.0981)
OKLCH	oklch(25.8% 0.098 268.1)
XYZ	xyz(2.1755, 1.5979, 8.1748)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D52 #524510

analogous

#103E52 #101D52 #241052

triadic

#101D52 #52101D #1D5210

tetradic

#101D52 #52103E #524510 #105224

square

#101D52 #52103E #524510 #105224

split-complementary

#101D52 #522410 #3E5210

monochromatic

#05091A #060B1F #101D52 #1A2F85 #2441B8

Accessibility & contrast

On white

15.91

#101D52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#101D52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D52

15.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D52	#FFFFFF	#000000	##FFFFFF
##101D52	1.00	15.91	1.32	15.91
#FFFFFF	15.91	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002554

Deuteranopia (green-blind)

#001F51

Tritanopia (blue-blind)

#002A34

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #101d52;
/* rgb */ color: rgb(16, 29, 82);
/* oklch */ color: oklch(25.8% 0.098 268.1);

Tailwind

colors: {
  custom: {
    50: '#5a5883',
    500: '#101d52',
    950: '#000000',
  },
}

SCSS

$custom: #101d52;
$custom-light: #5a5883;
$custom-dark: #000000;

JSON

{
  "hex": "#101d52",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 82
  },
  "hsl": {
    "h": 228.182,
    "s": 67.347,
    "l": 19.216
  },
  "oklch": {
    "l": 0.25798,
    "c": 0.09819,
    "h": 268.1
  },
  "luminance": 0.01598
}

Semantic roles & 50–950 ramp

primary

#101D52

secondary

#8C7A32

accent

#C83EEA

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #101D52

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

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