#103F5A#103F5A

#103F5A is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.068 H 238.8°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#103F5A
RGB	rgb(16, 63, 90)
HSL	hsl(202, 70%, 21%)
HSV	hsv(202, 82%, 35%)
CMYK	cmyk(82.2%, 30%, 0%, 64.7%)
CIE-LAB	lab(24.96, -5.05, -20.56)
CIE-LCH	lch(24.96, 21.17, 256.20°)
OKLab	oklab(35.07% -0.0352 -0.0581)
OKLCH	oklch(35.07% 0.068 238.8)
XYZ	xyz(3.8359, 4.4029, 10.3186)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103F5A #5A2B10

analogous

#105A50 #103F5A #101A5A

triadic

#103F5A #5A103F #3F5A10

tetradic

#103F5A #50105A #5A2B10 #1A5A10

square

#103F5A #50105A #5A2B10 #1A5A10

split-complementary

#103F5A #5A101A #5A5010

monochromatic

#05121A #071B26 #103F5A #19638E #2288C2

Accessibility & contrast

On white

11.17

#103F5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#103F5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103F5A

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103F5A	#FFFFFF	#000000	##FFFFFF
##103F5A	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323F5B

Deuteranopia (green-blind)

#28385A

Tritanopia (blue-blind)

#004648

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #103f5a;
/* rgb */ color: rgb(16, 63, 90);
/* oklch */ color: oklch(35.1% 0.068 238.8);

Tailwind

colors: {
  custom: {
    50: '#5b7388',
    500: '#103f5a',
    950: '#000000',
  },
}

SCSS

$custom: #103f5a;
$custom-light: #5b7388;
$custom-dark: #000000;

JSON

{
  "hex": "#103f5a",
  "rgb": {
    "r": 16,
    "g": 63,
    "b": 90
  },
  "hsl": {
    "h": 201.892,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.35065,
    "c": 0.06797,
    "h": 238.8
  },
  "luminance": 0.04403
}

Semantic roles & 50–950 ramp

primary

#103F5A

secondary

#935633

accent

#7C3BED

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#04080B

muted

#797B7C

Preview Lab

Preview with #103F5A

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

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