#155F9E#155F9E

#155F9E is a mid, vivid cyan. Relative luminance 0.108; OKLCH L 47.6% C 0.123 H 249.8°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#155F9E
RGB	rgb(21, 95, 158)
HSL	hsl(208, 77%, 35%)
HSV	hsv(208, 87%, 62%)
CMYK	cmyk(86.7%, 39.9%, 0%, 38%)
CIE-LAB	lab(39.26, 2.26, -40.24)
CIE-LCH	lch(39.26, 40.30, 273.21°)
OKLab	oklab(47.62% -0.0424 -0.115)
OKLCH	oklch(47.62% 0.123 249.8)
XYZ	xyz(10.5707, 10.8111, 33.8707)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F9E #9E5415

analogous

#159E98 #155F9E #151B9E

triadic

#155F9E #9E155F #5F9E15

tetradic

#155F9E #98159E #9E5415 #1B9E15

square

#155F9E #98159E #9E5415 #1B9E15

split-complementary

#155F9E #9E151B #9E9815

monochromatic

#071E32 #0E3F68 #155F9E #1C7FD4 #479DE7

Accessibility & contrast

On white

6.64

#155F9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#155F9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #155F9E

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F9E	#FFFFFF	#000000	##FFFFFF
##155F9E	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4063A1

Deuteranopia (green-blind)

#2A579D

Tritanopia (blue-blind)

#006E77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #155f9e;
/* rgb */ color: rgb(21, 95, 158);
/* oklch */ color: oklch(47.6% 0.123 249.8);

Tailwind

colors: {
  custom: {
    50: '#6d8bbb',
    500: '#155f9e',
    950: '#000000',
  },
}

SCSS

$custom: #155f9e;
$custom-light: #6d8bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#155f9e",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 158
  },
  "hsl": {
    "h": 207.591,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.47617,
    "c": 0.1226,
    "h": 249.8
  },
  "luminance": 0.10812
}

Semantic roles & 50–950 ramp

primary

#155F9E

secondary

#C78247

accent

#8C35F3

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C12

muted

#7B7D81

Preview Lab

Preview with #155F9E

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

Preview Lab → · Contrast checker → · Palette generator →