#2870B0#2870B0

#2870B0 is a mid, vivid cyan. Relative luminance 0.152; OKLCH L 53.3% C 0.123 H 249.2°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#2870B0
RGB	rgb(40, 112, 176)
HSL	hsl(208, 63%, 42%)
HSV	hsv(208, 77%, 69%)
CMYK	cmyk(77.3%, 36.4%, 0%, 31%)
CIE-LAB	lab(45.87, 0.50, -40.32)
CIE-LCH	lch(45.87, 40.33, 270.72°)
OKLab	oklab(53.25% -0.0436 -0.1148)
OKLCH	oklch(53.25% 0.123 249.2)
XYZ	xyz(14.5027, 15.1723, 43.2301)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2870B0 #B06828

analogous

#28B0AC #2870B0 #282CB0

triadic

#2870B0 #B02870 #70B028

tetradic

#2870B0 #AC28B0 #B06828 #2CB028

square

#2870B0 #AC28B0 #B06828 #2CB028

split-complementary

#2870B0 #B0282C #B0AC28

monochromatic

#11314C #1D507E #2870B0 #418FD4 #73ACDF

Accessibility & contrast

On white

5.20

#2870B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#2870B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2870B0

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2870B0	#FFFFFF	#000000	##FFFFFF
##2870B0	1.00	5.20	4.03	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5273B3

Deuteranopia (green-blind)

#3E67AF

Tritanopia (blue-blind)

#007F87

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2870b0;
/* rgb */ color: rgb(40, 112, 176);
/* oklch */ color: oklch(53.3% 0.123 249.2);

Tailwind

colors: {
  custom: {
    50: '#7698c8',
    500: '#2870b0',
    950: '#000000',
  },
}

SCSS

$custom: #2870b0;
$custom-light: #7698c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2870b0",
  "rgb": {
    "r": 40,
    "g": 112,
    "b": 176
  },
  "hsl": {
    "h": 208.235,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.53254,
    "c": 0.12283,
    "h": 249.2
  },
  "luminance": 0.15174
}

Semantic roles & 50–950 ramp

primary

#2870B0

secondary

#C6976D

accent

#8F42E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #2870B0

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

Preview Lab → · Contrast checker → · Palette generator →