#103E5A#103E5A

#103E5A is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.069 H 240.2°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#103E5A
RGB	rgb(16, 62, 90)
HSL	hsl(203, 70%, 21%)
HSV	hsv(203, 82%, 35%)
CMYK	cmyk(82.2%, 31.1%, 0%, 64.7%)
CIE-LAB	lab(24.62, -4.39, -21.10)
CIE-LCH	lch(24.62, 21.55, 258.24°)
OKLab	oklab(34.79% -0.0342 -0.0597)
OKLCH	oklch(34.79% 0.069 240.2)
XYZ	xyz(3.7810, 4.2931, 10.3003)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103E5A #5A2C10

analogous

#105A51 #103E5A #10195A

triadic

#103E5A #5A103E #3E5A10

tetradic

#103E5A #51105A #5A2C10 #195A10

square

#103E5A #51105A #5A2C10 #195A10

split-complementary

#103E5A #5A1019 #5A5110

monochromatic

#05121A #071A26 #103E5A #19628E #2286C2

Accessibility & contrast

On white

11.30

#103E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#103E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103E5A

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103E5A	#FFFFFF	#000000	##FFFFFF
##103E5A	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313E5B

Deuteranopia (green-blind)

#27375A

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #103e5a;
/* rgb */ color: rgb(16, 62, 90);
/* oklch */ color: oklch(34.8% 0.069 240.2);

Tailwind

colors: {
  custom: {
    50: '#5b7389',
    500: '#103e5a',
    950: '#000000',
  },
}

SCSS

$custom: #103e5a;
$custom-light: #5b7389;
$custom-dark: #000000;

JSON

{
  "hex": "#103e5a",
  "rgb": {
    "r": 16,
    "g": 62,
    "b": 90
  },
  "hsl": {
    "h": 202.703,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.34793,
    "c": 0.06877,
    "h": 240.2
  },
  "luminance": 0.04294
}

Semantic roles & 50–950 ramp

primary

#103E5A

secondary

#935733

accent

#7E3BED

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04080B

muted

#797B7C

Preview Lab

Preview with #103E5A

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

Preview Lab → · Contrast checker → · Palette generator →