#155CA0#155CA0

#155CA0 is a mid, vivid cyan. Relative luminance 0.104; OKLCH L 47.0% C 0.129 H 252.1°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#155CA0
RGB	rgb(21, 92, 160)
HSL	hsl(209, 77%, 35%)
HSV	hsv(209, 87%, 63%)
CMYK	cmyk(86.9%, 42.5%, 0%, 37.3%)
CIE-LAB	lab(38.46, 4.99, -42.70)
CIE-LCH	lch(38.46, 42.99, 276.67°)
OKLab	oklab(47.03% -0.0394 -0.1223)
OKLCH	oklch(47.03% 0.129 252.1)
XYZ	xyz(10.4792, 10.3505, 34.6964)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155CA0 #A05915

analogous

#15A09F #155CA0 #1516A0

triadic

#155CA0 #A0155C #5CA015

tetradic

#155CA0 #9F15A0 #A05915 #16A015

square

#155CA0 #9F15A0 #A05915 #16A015

split-complementary

#155CA0 #A01516 #A09F15

monochromatic

#071E34 #0E3D6A #155CA0 #1C7BD6 #4899E7

Accessibility & contrast

On white

6.84

#155CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#155CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #155CA0

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155CA0	#FFFFFF	#000000	##FFFFFF
##155CA0	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A61A3

Deuteranopia (green-blind)

#20559F

Tritanopia (blue-blind)

#006C76

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #155ca0;
/* rgb */ color: rgb(21, 92, 160);
/* oklch */ color: oklch(47.0% 0.129 252.1);

Tailwind

colors: {
  custom: {
    50: '#6d89bc',
    500: '#155ca0',
    950: '#000000',
  },
}

SCSS

$custom: #155ca0;
$custom-light: #6d89bc;
$custom-dark: #000000;

JSON

{
  "hex": "#155ca0",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 160
  },
  "hsl": {
    "h": 209.353,
    "s": 76.796,
    "l": 35.49
  },
  "oklch": {
    "l": 0.47033,
    "c": 0.12853,
    "h": 252.1
  },
  "luminance": 0.10352
}

Semantic roles & 50–950 ramp

primary

#155CA0

secondary

#C88749

accent

#9234F3

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #155CA0

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

Preview Lab → · Contrast checker → · Palette generator →