#15599E#15599E

#15599E is a mid, vivid cyan. Relative luminance 0.098; OKLCH L 46.2% C 0.129 H 253.2°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#15599E
RGB	rgb(21, 89, 158)
HSL	hsl(210, 77%, 35%)
HSV	hsv(210, 87%, 62%)
CMYK	cmyk(86.7%, 43.7%, 0%, 38%)
CIE-LAB	lab(37.43, 6.14, -43.16)
CIE-LCH	lch(37.43, 43.60, 278.10°)
OKLab	oklab(46.19% -0.0374 -0.1238)
OKLCH	oklch(46.19% 0.129 253.2)
XYZ	xyz(10.0509, 9.7715, 33.6975)
Luminance	0.0977 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15599E #9E5A15

analogous

#159D9E #15599E #16159E

triadic

#15599E #9E1559 #599E15

tetradic

#15599E #9E159D #9E5A15 #159E16

square

#15599E #9E159D #9E5A15 #159E16

split-complementary

#15599E #9E1615 #9D9E15

monochromatic

#071C32 #0E3B68 #15599E #1C77D4 #4796E7

Accessibility & contrast

On white

7.11

#15599E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#15599E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15599E

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15599E	#FFFFFF	#000000	##FFFFFF
##15599E	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365FA1

Deuteranopia (green-blind)

#1B539D

Tritanopia (blue-blind)

#006A73

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #15599e;
/* rgb */ color: rgb(21, 89, 158);
/* oklch */ color: oklch(46.2% 0.129 253.2);

Tailwind

colors: {
  custom: {
    50: '#6d87bb',
    500: '#15599e',
    950: '#000000',
  },
}

SCSS

$custom: #15599e;
$custom-light: #6d87bb;
$custom-dark: #000000;

JSON

{
  "hex": "#15599e",
  "rgb": {
    "r": 21,
    "g": 89,
    "b": 158
  },
  "hsl": {
    "h": 210.219,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.46187,
    "c": 0.1293,
    "h": 253.2
  },
  "luminance": 0.09773
}

Semantic roles & 50–950 ramp

primary

#15599E

secondary

#C78847

accent

#9535F3

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #15599E

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

Preview Lab → · Contrast checker → · Palette generator →