#101B7E#101B7E

#101B7E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.162 H 267.9°. Best body text is #FFFFFF at 14.19:1 contrast (WCAG AA passes).

Color values

HEX	#101B7E
RGB	rgb(16, 27, 126)
HSL	hsl(234, 77%, 28%)
HSV	hsv(234, 87%, 49%)
CMYK	cmyk(87.3%, 78.6%, 0%, 50.6%)
CIE-LAB	lab(17.46, 34.90, -55.94)
CIE-LCH	lch(17.46, 65.94, 301.96°)
OKLab	oklab(30.3% -0.006 -0.1621)
OKLCH	oklch(30.3% 0.162 267.9)
XYZ	xyz(4.3702, 2.3998, 19.9675)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B7E #7E7310

analogous

#10527E #101B7E #3C107E

triadic

#101B7E #7E101B #1B7E10

tetradic

#101B7E #7E1052 #7E7310 #107E3C

square

#101B7E #7E1052 #7E7310 #107E3C

split-complementary

#101B7E #7E3C10 #527E10

monochromatic

#03061B #090F48 #101B7E #1727B4 #2538E3

Accessibility & contrast

On white

14.19

#101B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#101B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B7E

14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B7E	#FFFFFF	#000000	##FFFFFF
##101B7E	1.00	14.19	1.48	14.19
#FFFFFF	14.19	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00257C

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #101b7e;
/* rgb */ color: rgb(16, 27, 126);
/* oklch */ color: oklch(30.3% 0.162 267.9);

Tailwind

colors: {
  custom: {
    50: '#6758a5',
    500: '#101b7e',
    950: '#000000',
  },
}

SCSS

$custom: #101b7e;
$custom-light: #6758a5;
$custom-dark: #000000;

JSON

{
  "hex": "#101b7e",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 126
  },
  "hsl": {
    "h": 234,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30303,
    "c": 0.16225,
    "h": 267.9
  },
  "luminance": 0.024
}

Semantic roles & 50–950 ramp

primary

#101B7E

secondary

#B4A836

accent

#E134F4

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #101B7E

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

Preview Lab → · Contrast checker → · Palette generator →