#103B51#103B51

#103B51 is a dark, moderate cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.060 H 235.2°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#103B51
RGB	rgb(16, 59, 81)
HSL	hsl(200, 67%, 19%)
HSV	hsv(200, 80%, 32%)
CMYK	cmyk(80.2%, 27.2%, 0%, 68.2%)
CIE-LAB	lab(23.11, -6.07, -17.55)
CIE-LCH	lch(23.11, 18.57, 250.91°)
OKLab	oklab(33.44% -0.0343 -0.0494)
OKLCH	oklch(33.44% 0.06 235.2)
XYZ	xyz(3.2623, 3.8318, 8.3507)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B51 #512610

analogous

#105147 #103B51 #101B51

triadic

#103B51 #51103B #3B5110

tetradic

#103B51 #471051 #512610 #1B5110

square

#103B51 #471051 #512610 #1B5110

split-complementary

#103B51 #51101B #514710

monochromatic

#05131A #06161E #103B51 #1A6084 #2485B7

Accessibility & contrast

On white

11.89

#103B51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#103B51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B51

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B51	#FFFFFF	#000000	##FFFFFF
##103B51	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303B52

Deuteranopia (green-blind)

#283451

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #103b51;
/* rgb */ color: rgb(16, 59, 81);
/* oklch */ color: oklch(33.4% 0.060 235.2);

Tailwind

colors: {
  custom: {
    50: '#597082',
    500: '#103b51',
    950: '#000000',
  },
}

SCSS

$custom: #103b51;
$custom-light: #597082;
$custom-dark: #000000;

JSON

{
  "hex": "#103b51",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 81
  },
  "hsl": {
    "h": 200.308,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33438,
    "c": 0.06015,
    "h": 235.2
  },
  "luminance": 0.03832
}

Semantic roles & 50–950 ramp

primary

#103B51

secondary

#8B5032

accent

#783EEA

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #103B51

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

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