#103B5D#103B5D

#103B5D is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.076 H 246.7°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#103B5D
RGB	rgb(16, 59, 93)
HSL	hsl(206, 71%, 21%)
HSV	hsv(206, 83%, 36%)
CMYK	cmyk(82.8%, 36.6%, 0%, 63.5%)
CIE-LAB	lab(23.76, -1.14, -24.40)
CIE-LCH	lch(23.76, 24.43, 267.33°)
OKLab	oklab(34.17% -0.0299 -0.0694)
OKLCH	oklch(34.17% 0.076 246.7)
XYZ	xyz(3.7527, 4.0280, 10.9335)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B5D #5D3210

analogous

#105D59 #103B5D #10145D

triadic

#103B5D #5D103B #3B5D10

tetradic

#103B5D #59105D #5D3210 #145D10

square

#103B5D #59105D #5D3210 #145D10

split-complementary

#103B5D #5D1014 #5D5910

monochromatic

#04111A #071A29 #103B5D #195C91 #227DC5

Accessibility & contrast

On white

11.63

#103B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B5D

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B5D	#FFFFFF	#000000	##FFFFFF
##103B5D	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3C5E

Deuteranopia (green-blind)

#20355C

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103b5d;
/* rgb */ color: rgb(16, 59, 93);
/* oklch */ color: oklch(34.2% 0.076 246.7);

Tailwind

colors: {
  custom: {
    50: '#5c708b',
    500: '#103b5d',
    950: '#000000',
  },
}

SCSS

$custom: #103b5d;
$custom-light: #5c708b;
$custom-dark: #000000;

JSON

{
  "hex": "#103b5d",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 93
  },
  "hsl": {
    "h": 206.494,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.34173,
    "c": 0.07555,
    "h": 246.7
  },
  "luminance": 0.04028
}

Semantic roles & 50–950 ramp

primary

#103B5D

secondary

#965F33

accent

#893AED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070C

muted

#797A7D

Preview Lab

Preview with #103B5D

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

Preview Lab → · Contrast checker → · Palette generator →