#10517E#10517E

#10517E is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.0% C 0.097 H 245.0°. Best body text is #FFFFFF at 8.40:1 contrast (WCAG AA passes).

Color values

HEX	#10517E
RGB	rgb(16, 81, 126)
HSL	hsl(205, 77%, 28%)
HSV	hsv(205, 87%, 49%)
CMYK	cmyk(87.3%, 35.7%, 0%, 50.6%)
CIE-LAB	lab(32.92, -2.08, -30.87)
CIE-LCH	lch(32.92, 30.94, 266.15°)
OKLab	oklab(42.01% -0.041 -0.0879)
OKLCH	oklch(42.01% 0.097 245)
XYZ	xyz(6.9205, 7.5005, 20.8176)
Luminance	0.0750 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10517E #7E3D10

analogous

#107E74 #10517E #101A7E

triadic

#10517E #7E1051 #517E10

tetradic

#10517E #74107E #7E3D10 #1A7E10

square

#10517E #74107E #7E3D10 #1A7E10

split-complementary

#10517E #7E101A #7E7410

monochromatic

#03111B #092E48 #10517E #1774B4 #2595E3

Accessibility & contrast

On white

8.40

#10517E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#10517E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10517E

8.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10517E	#FFFFFF	#000000	##FFFFFF
##10517E	1.00	8.40	2.50	8.40
#FFFFFF	8.40	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C5380

Deuteranopia (green-blind)

#2C497D

Tritanopia (blue-blind)

#005C61

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #10517e;
/* rgb */ color: rgb(16, 81, 126);
/* oklch */ color: oklch(42.0% 0.097 245.0);

Tailwind

colors: {
  custom: {
    50: '#6481a3',
    500: '#10517e',
    950: '#000000',
  },
}

SCSS

$custom: #10517e;
$custom-light: #6481a3;
$custom-dark: #000000;

JSON

{
  "hex": "#10517e",
  "rgb": {
    "r": 16,
    "g": 81,
    "b": 126
  },
  "hsl": {
    "h": 204.545,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.42007,
    "c": 0.09699,
    "h": 245
  },
  "luminance": 0.07501
}

Semantic roles & 50–950 ramp

primary

#10517E

secondary

#B46936

accent

#8234F4

background

#F6F7FA

surface

#EBEEF4

border

#C6C9CE

text

#060A0F

muted

#7A7C7F

Preview Lab

Preview with #10517E

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

Preview Lab → · Contrast checker → · Palette generator →