#103B4C#103B4C

#103B4C is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.2% C 0.055 H 228.4°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#103B4C
RGB	rgb(16, 59, 76)
HSL	hsl(197, 65%, 18%)
HSV	hsv(197, 79%, 30%)
CMYK	cmyk(78.9%, 22.4%, 0%, 70.2%)
CIE-LAB	lab(22.86, -8.06, -14.62)
CIE-LCH	lch(22.86, 16.69, 241.11°)
OKLab	oklab(33.16% -0.0364 -0.041)
OKLCH	oklch(33.16% 0.055 228.4)
XYZ	xyz(3.0816, 3.7595, 7.3993)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B4C #4C2110

analogous

#104C3F #103B4C #101D4C

triadic

#103B4C #4C103B #3B4C10

tetradic

#103B4C #3F104C #4C2110 #1D4C10

square

#103B4C #3F104C #4C2110 #1D4C10

split-complementary

#103B4C #4C101D #4C3F10

monochromatic

#051419 #051419 #103B4C #1B627F #2589B1

Accessibility & contrast

On white

11.99

#103B4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#103B4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B4C

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B4C	#FFFFFF	#000000	##FFFFFF
##103B4C	1.00	11.99	1.75	11.99
#FFFFFF	11.99	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4D

Deuteranopia (green-blind)

#2A344C

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #103b4c;
/* rgb */ color: rgb(16, 59, 76);
/* oklch */ color: oklch(33.2% 0.055 228.4);

Tailwind

colors: {
  custom: {
    50: '#58717e',
    500: '#103b4c',
    950: '#000000',
  },
}

SCSS

$custom: #103b4c;
$custom-light: #58717e;
$custom-dark: #000000;

JSON

{
  "hex": "#103b4c",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 76
  },
  "hsl": {
    "h": 197,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.33159,
    "c": 0.0548,
    "h": 228.4
  },
  "luminance": 0.0376
}

Semantic roles & 50–950 ramp

primary

#103B4C

secondary

#864A32

accent

#6F40E8

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #103B4C

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

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