#10577E#10577E

#10577E is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.5% C 0.092 H 239.4°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#10577E
RGB	rgb(16, 87, 126)
HSL	hsl(201, 77%, 28%)
HSV	hsv(201, 87%, 49%)
CMYK	cmyk(87.3%, 31%, 0%, 50.6%)
CIE-LAB	lab(34.87, -5.88, -27.80)
CIE-LCH	lch(34.87, 28.42, 258.05°)
OKLab	oklab(43.55% -0.0467 -0.0788)
OKLCH	oklch(43.55% 0.092 239.4)
XYZ	xyz(7.3863, 8.4320, 20.9729)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10577E #7E3710

analogous

#107E6E #10577E #10207E

triadic

#10577E #7E1057 #577E10

tetradic

#10577E #6E107E #7E3710 #207E10

square

#10577E #6E107E #7E3710 #207E10

split-complementary

#10577E #7E1020 #7E6E10

monochromatic

#03131B #093248 #10577E #177CB4 #25A0E3

Accessibility & contrast

On white

7.82

#10577E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#10577E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10577E

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10577E	#FFFFFF	#000000	##FFFFFF
##10577E	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445780

Deuteranopia (green-blind)

#364E7D

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #10577e;
/* rgb */ color: rgb(16, 87, 126);
/* oklch */ color: oklch(43.5% 0.092 239.4);

Tailwind

colors: {
  custom: {
    50: '#6486a3',
    500: '#10577e',
    950: '#000000',
  },
}

SCSS

$custom: #10577e;
$custom-light: #6486a3;
$custom-dark: #000000;

JSON

{
  "hex": "#10577e",
  "rgb": {
    "r": 16,
    "g": 87,
    "b": 126
  },
  "hsl": {
    "h": 201.273,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.43548,
    "c": 0.0916,
    "h": 239.4
  },
  "luminance": 0.08433
}

Semantic roles & 50–950 ramp

primary

#10577E

secondary

#B46236

accent

#7834F4

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#060B0F

muted

#7A7C7F

Preview Lab

Preview with #10577E

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

Preview Lab → · Contrast checker → · Palette generator →