#103B5F#103B5F

#103B5F is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.078 H 248.0°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#103B5F
RGB	rgb(16, 59, 95)
HSL	hsl(207, 71%, 22%)
HSV	hsv(207, 83%, 37%)
CMYK	cmyk(83.2%, 37.9%, 0%, 62.7%)
CIE-LAB	lab(23.88, -0.30, -25.52)
CIE-LCH	lch(23.88, 25.52, 269.33°)
OKLab	oklab(34.3% -0.0293 -0.0726)
OKLCH	oklch(34.3% 0.078 248)
XYZ	xyz(3.8424, 4.0639, 11.4061)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B5F #5F3410

analogous

#105F5C #103B5F #10145F

triadic

#103B5F #5F103B #3B5F10

tetradic

#103B5F #5C105F #5F3410 #145F10

square

#103B5F #5C105F #5F3410 #145F10

split-complementary

#103B5F #5F1014 #5F5C10

monochromatic

#04101A #071A2B #103B5F #195C93 #227CC8

Accessibility & contrast

On white

11.58

#103B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B5F

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B5F	#FFFFFF	#000000	##FFFFFF
##103B5F	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3D61

Deuteranopia (green-blind)

#1F365E

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103b5f;
/* rgb */ color: rgb(16, 59, 95);
/* oklch */ color: oklch(34.3% 0.078 248.0);

Tailwind

colors: {
  custom: {
    50: '#5c708c',
    500: '#103b5f',
    950: '#000000',
  },
}

SCSS

$custom: #103b5f;
$custom-light: #5c708c;
$custom-dark: #000000;

JSON

{
  "hex": "#103b5f",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 95
  },
  "hsl": {
    "h": 207.342,
    "s": 71.171,
    "l": 21.765
  },
  "oklch": {
    "l": 0.34304,
    "c": 0.07832,
    "h": 248
  },
  "luminance": 0.04064
}

Semantic roles & 50–950 ramp

primary

#103B5F

secondary

#986133

accent

#8C3AEE

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #103B5F

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

Preview Lab → · Contrast checker → · Palette generator →