#2870B2#2870B2

#2870B2 is a mid, vivid cyan. Relative luminance 0.153; OKLCH L 53.4% C 0.125 H 249.9°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#2870B2
RGB	rgb(40, 112, 178)
HSL	hsl(209, 63%, 43%)
HSV	hsv(209, 78%, 70%)
CMYK	cmyk(77.5%, 37.1%, 0%, 30.2%)
CIE-LAB	lab(45.98, 1.26, -41.32)
CIE-LCH	lch(45.98, 41.34, 271.74°)
OKLab	oklab(53.37% -0.0431 -0.1177)
OKLCH	oklch(53.37% 0.125 249.9)
XYZ	xyz(14.7021, 15.2521, 44.2799)
Luminance	0.1525 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2870B2 #B26A28

analogous

#28B2AF #2870B2 #282BB2

triadic

#2870B2 #B22870 #70B228

tetradic

#2870B2 #AF28B2 #B26A28 #2BB228

square

#2870B2 #AF28B2 #B26A28 #2BB228

split-complementary

#2870B2 #B2282B #B2AF28

monochromatic

#12314E #1D5180 #2870B2 #438FD5 #75ADE0

Accessibility & contrast

On white

5.18

#2870B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#2870B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2870B2

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2870B2	#FFFFFF	#000000	##FFFFFF
##2870B2	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5174B5

Deuteranopia (green-blind)

#3C67B1

Tritanopia (blue-blind)

#008088

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #2870b2;
/* rgb */ color: rgb(40, 112, 178);
/* oklch */ color: oklch(53.4% 0.125 249.9);

Tailwind

colors: {
  custom: {
    50: '#7698c9',
    500: '#2870b2',
    950: '#000000',
  },
}

SCSS

$custom: #2870b2;
$custom-light: #7698c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2870b2",
  "rgb": {
    "r": 40,
    "g": 112,
    "b": 178
  },
  "hsl": {
    "h": 208.696,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.53374,
    "c": 0.12537,
    "h": 249.9
  },
  "luminance": 0.15254
}

Semantic roles & 50–950 ramp

primary

#2870B2

secondary

#C7996F

accent

#9041E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #2870B2

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

Preview Lab → · Contrast checker → · Palette generator →