#2874B3#2874B3

#2874B3 is a mid, vivid cyan. Relative luminance 0.162; OKLCH L 54.4% C 0.123 H 247.7°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#2874B3
RGB	rgb(40, 116, 179)
HSL	hsl(207, 63%, 43%)
HSV	hsv(207, 78%, 70%)
CMYK	cmyk(77.7%, 35.2%, 0%, 29.8%)
CIE-LAB	lab(47.23, -0.82, -39.92)
CIE-LCH	lch(47.23, 39.92, 268.82°)
OKLab	oklab(54.37% -0.0465 -0.1135)
OKLCH	oklch(54.37% 0.123 247.7)
XYZ	xyz(15.2540, 16.1948, 44.9610)
Luminance	0.1620 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2874B3 #B36728

analogous

#28B3AC #2874B3 #282FB3

triadic

#2874B3 #B32874 #74B328

tetradic

#2874B3 #AC28B3 #B36728 #2FB328

square

#2874B3 #AC28B3 #B36728 #2FB328

split-complementary

#2874B3 #B3282F #B3AC28

monochromatic

#12334F #1D5481 #2874B3 #4393D5 #75B0E0

Accessibility & contrast

On white

4.95

#2874B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#2874B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2874B3

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2874B3	#FFFFFF	#000000	##FFFFFF
##2874B3	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5777B6

Deuteranopia (green-blind)

#436AB2

Tritanopia (blue-blind)

#00838B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #2874b3;
/* rgb */ color: rgb(40, 116, 179);
/* oklch */ color: oklch(54.4% 0.123 247.7);

Tailwind

colors: {
  custom: {
    50: '#779bca',
    500: '#2874b3',
    950: '#000000',
  },
}

SCSS

$custom: #2874b3;
$custom-light: #779bca;
$custom-dark: #000000;

JSON

{
  "hex": "#2874b3",
  "rgb": {
    "r": 40,
    "g": 116,
    "b": 179
  },
  "hsl": {
    "h": 207.194,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.54375,
    "c": 0.12271,
    "h": 247.7
  },
  "luminance": 0.16197
}

Semantic roles & 50–950 ramp

primary

#2874B3

secondary

#C8976F

accent

#8C41E6

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #2874B3

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

Preview Lab → · Contrast checker → · Palette generator →