#10509D#10509D

#10509D is a dark, vivid cyan. Relative luminance 0.083; OKLCH L 43.9% C 0.140 H 256.4°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#10509D
RGB	rgb(16, 80, 157)
HSL	hsl(213, 82%, 34%)
HSV	hsv(213, 90%, 62%)
CMYK	cmyk(89.8%, 49%, 0%, 38.4%)
CIE-LAB	lab(34.56, 11.36, -47.18)
CIE-LCH	lch(34.56, 48.53, 283.53°)
OKLab	oklab(43.92% -0.0328 -0.1358)
OKLCH	oklch(43.92% 0.14 256.4)
XYZ	xyz(9.1659, 8.2806, 33.0070)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10509D #9D5D10

analogous

#10979D #10509D #17109D

triadic

#10509D #9D1050 #509D10

tetradic

#10509D #9D1097 #9D5D10 #109D17

square

#10509D #9D1097 #9D5D10 #109D17

split-complementary

#10509D #9D1710 #979D10

monochromatic

#05172E #0A3465 #10509D #166CD5 #3C8CEB

Accessibility & contrast

On white

7.91

#10509D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#10509D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10509D

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10509D	#FFFFFF	#000000	##FFFFFF
##10509D	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2258A0

Deuteranopia (green-blind)

#004C9B

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #10509d;
/* rgb */ color: rgb(16, 80, 157);
/* oklch */ color: oklch(43.9% 0.140 256.4);

Tailwind

colors: {
  custom: {
    50: '#6c80ba',
    500: '#10509d',
    950: '#000000',
  },
}

SCSS

$custom: #10509d;
$custom-light: #6c80ba;
$custom-dark: #000000;

JSON

{
  "hex": "#10509d",
  "rgb": {
    "r": 16,
    "g": 80,
    "b": 157
  },
  "hsl": {
    "h": 212.766,
    "s": 81.503,
    "l": 33.922
  },
  "oklch": {
    "l": 0.43916,
    "c": 0.13972,
    "h": 256.4
  },
  "luminance": 0.08282
}

Semantic roles & 50–950 ramp

primary

#10509D

secondary

#CA8B3E

accent

#9D30F8

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #10509D

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

Preview Lab → · Contrast checker → · Palette generator →