#103B5A#103B5A

#103B5A is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.071 H 244.3°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#103B5A
RGB	rgb(16, 59, 90)
HSL	hsl(205, 70%, 21%)
HSV	hsv(205, 82%, 35%)
CMYK	cmyk(82.2%, 34.4%, 0%, 64.7%)
CIE-LAB	lab(23.59, -2.39, -22.71)
CIE-LCH	lch(23.59, 22.84, 264.00°)
OKLab	oklab(33.98% -0.0309 -0.0644)
OKLCH	oklch(33.98% 0.071 244.3)
XYZ	xyz(3.6224, 3.9758, 10.2474)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B5A #5A2F10

analogous

#105A54 #103B5A #10165A

triadic

#103B5A #5A103B #3B5A10

tetradic

#103B5A #54105A #5A2F10 #165A10

square

#103B5A #54105A #5A2F10 #165A10

split-complementary

#103B5A #5A1016 #5A5410

monochromatic

#05111A #071926 #103B5A #195D8E #227FC2

Accessibility & contrast

On white

11.70

#103B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#103B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B5A

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B5A	#FFFFFF	#000000	##FFFFFF
##103B5A	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3C5B

Deuteranopia (green-blind)

#223559

Tritanopia (blue-blind)

#004346

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103b5a;
/* rgb */ color: rgb(16, 59, 90);
/* oklch */ color: oklch(34.0% 0.071 244.3);

Tailwind

colors: {
  custom: {
    50: '#5b7089',
    500: '#103b5a',
    950: '#000000',
  },
}

SCSS

$custom: #103b5a;
$custom-light: #5b7089;
$custom-dark: #000000;

JSON

{
  "hex": "#103b5a",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 90
  },
  "hsl": {
    "h": 205.135,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.33981,
    "c": 0.07147,
    "h": 244.3
  },
  "luminance": 0.03976
}

Semantic roles & 50–950 ramp

primary

#103B5A

secondary

#935B33

accent

#863BED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #103B5A

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

Preview Lab → · Contrast checker → · Palette generator →