#101C7E#101C7E

#101C7E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.161 H 267.8°. Best body text is #FFFFFF at 14.10:1 contrast (WCAG AA passes).

Color values

HEX	#101C7E
RGB	rgb(16, 28, 126)
HSL	hsl(233, 77%, 28%)
HSV	hsv(233, 87%, 49%)
CMYK	cmyk(87.3%, 77.8%, 0%, 50.6%)
CIE-LAB	lab(17.67, 34.29, -55.58)
CIE-LCH	lch(17.67, 65.31, 301.67°)
OKLab	oklab(30.46% -0.0063 -0.1611)
OKLCH	oklch(30.46% 0.161 267.8)
XYZ	xyz(4.3935, 2.4465, 19.9753)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C7E #7E7210

analogous

#10537E #101C7E #3B107E

triadic

#101C7E #7E101C #1C7E10

tetradic

#101C7E #7E1053 #7E7210 #107E3B

square

#101C7E #7E1053 #7E7210 #107E3B

split-complementary

#101C7E #7E3B10 #537E10

monochromatic

#03061B #091048 #101C7E #1728B4 #253AE3

Accessibility & contrast

On white

14.10

#101C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#101C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C7E

14.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C7E	#FFFFFF	#000000	##FFFFFF
##101C7E	1.00	14.10	1.49	14.10
#FFFFFF	14.10	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #101c7e;
/* rgb */ color: rgb(16, 28, 126);
/* oklch */ color: oklch(30.5% 0.161 267.8);

Tailwind

colors: {
  custom: {
    50: '#6759a5',
    500: '#101c7e',
    950: '#000000',
  },
}

SCSS

$custom: #101c7e;
$custom-light: #6759a5;
$custom-dark: #000000;

JSON

{
  "hex": "#101c7e",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 126
  },
  "hsl": {
    "h": 233.455,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30456,
    "c": 0.16123,
    "h": 267.8
  },
  "luminance": 0.02447
}

Semantic roles & 50–950 ramp

primary

#101C7E

secondary

#B4A636

accent

#DF34F4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #101C7E

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

Preview Lab → · Contrast checker → · Palette generator →