#10374F#10374F

#10374F is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.2% C 0.061 H 239.8°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#10374F
RGB	rgb(16, 55, 79)
HSL	hsl(203, 66%, 19%)
HSV	hsv(203, 80%, 31%)
CMYK	cmyk(79.7%, 30.4%, 0%, 69%)
CIE-LAB	lab(21.60, -4.24, -18.57)
CIE-LCH	lch(21.60, 19.04, 257.14°)
OKLab	oklab(32.21% -0.0305 -0.0524)
OKLCH	oklch(32.21% 0.061 239.8)
XYZ	xyz(2.9906, 3.4067, 7.8956)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10374F #4F2810

analogous

#104F47 #10374F #10174F

triadic

#10374F #4F1037 #374F10

tetradic

#10374F #47104F #4F2810 #174F10

square

#10374F #47104F #4F2810 #174F10

split-complementary

#10374F #4F1017 #4F4710

monochromatic

#051219 #06141C #10374F #1A5A82 #257EB5

Accessibility & contrast

On white

12.49

#10374F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#10374F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10374F

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10374F	#FFFFFF	#000000	##FFFFFF
##10374F	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3750

Deuteranopia (green-blind)

#23314F

Tritanopia (blue-blind)

#003D3F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #10374f;
/* rgb */ color: rgb(16, 55, 79);
/* oklch */ color: oklch(32.2% 0.061 239.8);

Tailwind

colors: {
  custom: {
    50: '#586d80',
    500: '#10374f',
    950: '#000000',
  },
}

SCSS

$custom: #10374f;
$custom-light: #586d80;
$custom-dark: #000000;

JSON

{
  "hex": "#10374f",
  "rgb": {
    "r": 16,
    "g": 55,
    "b": 79
  },
  "hsl": {
    "h": 202.857,
    "s": 66.316,
    "l": 18.627
  },
  "oklch": {
    "l": 0.32209,
    "c": 0.06065,
    "h": 239.8
  },
  "luminance": 0.03407
}

Semantic roles & 50–950 ramp

primary

#10374F

secondary

#895332

accent

#803FE9

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #10374F

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

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