#155DA0#155DA0

#155DA0 is a mid, vivid cyan. Relative luminance 0.105; OKLCH L 47.3% C 0.127 H 251.6°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#155DA0
RGB	rgb(21, 93, 160)
HSL	hsl(209, 77%, 35%)
HSV	hsv(209, 87%, 63%)
CMYK	cmyk(86.9%, 41.9%, 0%, 37.3%)
CIE-LAB	lab(38.77, 4.35, -42.22)
CIE-LCH	lch(38.77, 42.44, 275.88°)
OKLab	oklab(47.27% -0.0402 -0.1209)
OKLCH	oklch(47.27% 0.127 251.6)
XYZ	xyz(10.5664, 10.5248, 34.7255)
Luminance	0.1053 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155DA0 #A05815

analogous

#15A09D #155DA0 #1517A0

triadic

#155DA0 #A0155D #5DA015

tetradic

#155DA0 #9D15A0 #A05815 #17A015

square

#155DA0 #9D15A0 #A05815 #17A015

split-complementary

#155DA0 #A01517 #A09D15

monochromatic

#071E34 #0E3E6A #155DA0 #1C7CD6 #489BE7

Accessibility & contrast

On white

6.76

#155DA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#155DA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #155DA0

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155DA0	#FFFFFF	#000000	##FFFFFF
##155DA0	1.00	6.76	3.11	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B62A3

Deuteranopia (green-blind)

#23569F

Tritanopia (blue-blind)

#006D76

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #155da0;
/* rgb */ color: rgb(21, 93, 160);
/* oklch */ color: oklch(47.3% 0.127 251.6);

Tailwind

colors: {
  custom: {
    50: '#6d8abc',
    500: '#155da0',
    950: '#000000',
  },
}

SCSS

$custom: #155da0;
$custom-light: #6d8abc;
$custom-dark: #000000;

JSON

{
  "hex": "#155da0",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 160
  },
  "hsl": {
    "h": 208.921,
    "s": 76.796,
    "l": 35.49
  },
  "oklch": {
    "l": 0.47271,
    "c": 0.12741,
    "h": 251.6
  },
  "luminance": 0.10526
}

Semantic roles & 50–950 ramp

primary

#155DA0

secondary

#C88649

accent

#9034F3

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080B12

muted

#7B7C81

Preview Lab

Preview with #155DA0

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

Preview Lab → · Contrast checker → · Palette generator →