#101C58#101C58

#101C58 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.2% C 0.109 H 268.7°. Best body text is #FFFFFF at 15.80:1 contrast (WCAG AA passes).

Color values

HEX	#101C58
RGB	rgb(16, 28, 88)
HSL	hsl(230, 69%, 20%)
HSV	hsv(230, 82%, 35%)
CMYK	cmyk(81.8%, 68.2%, 0%, 65.5%)
CIE-LAB	lab(13.50, 19.32, -37.60)
CIE-LCH	lch(13.50, 42.27, 297.19°)
OKLab	oklab(26.19% -0.0025 -0.1087)
OKLCH	oklch(26.19% 0.109 268.7)
XYZ	xyz(2.3898, 1.6450, 9.4222)
Luminance	0.0164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C58 #584C10

analogous

#104058 #101C58 #281058

triadic

#101C58 #58101C #1C5810

tetradic

#101C58 #581040 #584C10 #105828

square

#101C58 #581040 #584C10 #105828

split-complementary

#101C58 #582810 #405810

monochromatic

#05081A #070C24 #101C58 #192C8C #233DC0

Accessibility & contrast

On white

15.80

#101C58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#101C58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C58

15.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C58	#FFFFFF	#000000	##FFFFFF
##101C58	1.00	15.80	1.33	15.80
#FFFFFF	15.80	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265A

Deuteranopia (green-blind)

#001F57

Tritanopia (blue-blind)

#002C37

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #101c58;
/* rgb */ color: rgb(16, 28, 88);
/* oklch */ color: oklch(26.2% 0.109 268.7);

Tailwind

colors: {
  custom: {
    50: '#5c5888',
    500: '#101c58',
    950: '#000000',
  },
}

SCSS

$custom: #101c58;
$custom-light: #5c5888;
$custom-dark: #000000;

JSON

{
  "hex": "#101c58",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 88
  },
  "hsl": {
    "h": 230,
    "s": 69.231,
    "l": 20.392
  },
  "oklch": {
    "l": 0.26188,
    "c": 0.10874,
    "h": 268.7
  },
  "luminance": 0.01645
}

Semantic roles & 50–950 ramp

primary

#101C58

secondary

#918232

accent

#CF3CEC

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #101C58

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

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