#10578D#10578D

#10578D is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.5% C 0.110 H 247.6°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#10578D
RGB	rgb(16, 87, 141)
HSL	hsl(206, 80%, 31%)
HSV	hsv(206, 89%, 55%)
CMYK	cmyk(88.7%, 38.3%, 0%, 44.7%)
CIE-LAB	lab(35.69, 0.15, -35.68)
CIE-LCH	lch(35.69, 35.68, 270.25°)
OKLab	oklab(44.47% -0.042 -0.1019)
OKLCH	oklch(44.47% 0.11 247.6)
XYZ	xyz(8.4277, 8.8486, 26.4579)
Luminance	0.0885 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10578D #8D4610

analogous

#108D84 #10578D #10188D

triadic

#10578D #8D1057 #578D10

tetradic

#10578D #84108D #8D4610 #188D10

square

#10578D #84108D #8D4610 #188D10

split-complementary

#10578D #8D1018 #8D8410

monochromatic

#04131F #0A3556 #10578D #1679C4 #3098E7

Accessibility & contrast

On white

7.58

#10578D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#10578D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10578D

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10578D	#FFFFFF	#000000	##FFFFFF
##10578D	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5A8F

Deuteranopia (green-blind)

#2A4F8C

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #10578d;
/* rgb */ color: rgb(16, 87, 141);
/* oklch */ color: oklch(44.5% 0.110 247.6);

Tailwind

colors: {
  custom: {
    50: '#6886ae',
    500: '#10578d',
    950: '#000000',
  },
}

SCSS

$custom: #10578d;
$custom-light: #6886ae;
$custom-dark: #000000;

JSON

{
  "hex": "#10578d",
  "rgb": {
    "r": 16,
    "g": 87,
    "b": 141
  },
  "hsl": {
    "h": 205.92,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.44468,
    "c": 0.11017,
    "h": 247.6
  },
  "luminance": 0.0885
}

Semantic roles & 50–950 ramp

primary

#10578D

secondary

#C27337

accent

#8732F6

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #10578D

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

Preview Lab → · Contrast checker → · Palette generator →