#103E8C#103E8C

#103E8C is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.5% C 0.139 H 260.6°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#103E8C
RGB	rgb(16, 62, 140)
HSL	hsl(218, 79%, 31%)
HSV	hsv(218, 89%, 55%)
CMYK	cmyk(88.6%, 55.7%, 0%, 45.1%)
CIE-LAB	lab(27.97, 16.67, -47.47)
CIE-LCH	lch(27.97, 50.31, 289.35°)
OKLab	oklab(38.47% -0.0228 -0.1371)
OKLCH	oklch(38.47% 0.139 260.6)
XYZ	xyz(6.6682, 5.4480, 25.5060)
Luminance	0.0545 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103E8C #8C5E10

analogous

#107C8C #103E8C #20108C

triadic

#103E8C #8C103E #3E8C10

tetradic

#103E8C #8C107C #8C5E10 #108C20

square

#103E8C #8C107C #8C5E10 #108C20

split-complementary

#103E8C #8C2010 #7C8C10

monochromatic

#030D1E #0A2655 #103E8C #1656C3 #2F73E7

Accessibility & contrast

On white

10.05

#103E8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#103E8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103E8C

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103E8C	#FFFFFF	#000000	##FFFFFF
##103E8C	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #103e8c;
/* rgb */ color: rgb(16, 62, 140);
/* oklch */ color: oklch(38.5% 0.139 260.6);

Tailwind

colors: {
  custom: {
    50: '#6872ae',
    500: '#103e8c',
    950: '#000000',
  },
}

SCSS

$custom: #103e8c;
$custom-light: #6872ae;
$custom-dark: #000000;

JSON

{
  "hex": "#103e8c",
  "rgb": {
    "r": 16,
    "g": 62,
    "b": 140
  },
  "hsl": {
    "h": 217.742,
    "s": 79.487,
    "l": 30.588
  },
  "oklch": {
    "l": 0.38474,
    "c": 0.13897,
    "h": 260.6
  },
  "luminance": 0.05449
}

Semantic roles & 50–950 ramp

primary

#103E8C

secondary

#C18E37

accent

#AD32F6

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #103E8C

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

Preview Lab → · Contrast checker → · Palette generator →