#279BB5#279BB5

#279BB5 is a light, moderate cyan. Relative luminance 0.272; OKLCH L 63.9% C 0.104 H 216.9°. Best body text is #000000 at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#279BB5
RGB	rgb(39, 155, 181)
HSL	hsl(191, 65%, 43%)
HSV	hsv(191, 78%, 71%)
CMYK	cmyk(78.5%, 14.4%, 0%, 29%)
CIE-LAB	lab(59.17, -22.22, -22.47)
CIE-LCH	lch(59.17, 31.60, 225.31°)
OKLab	oklab(63.91% -0.0835 -0.0628)
OKLCH	oklch(63.91% 0.104 216.9)
XYZ	xyz(20.8950, 27.2076, 47.8574)
Luminance	0.2721 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#279BB5 #B54127

analogous

#27B588 #279BB5 #2754B5

triadic

#279BB5 #B5279B #9BB527

tetradic

#279BB5 #8827B5 #B54127 #54B527

square

#279BB5 #8827B5 #B54127 #54B527

split-complementary

#279BB5 #B52754 #B58827

monochromatic

#114550 #1C7083 #279BB5 #43BBD6 #75CDE1

Accessibility & contrast

On white

3.26

#279BB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.44

#279BB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #279BB5

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##279BB5	#FFFFFF	#000000	##000000
##279BB5	1.00	3.26	6.44	6.44
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.44	21.00	1.00	1.00
##000000	6.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A96B6

Deuteranopia (green-blind)

#7788B5

Tritanopia (blue-blind)

#00A4A3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #279bb5;
/* rgb */ color: rgb(39, 155, 181);
/* oklch */ color: oklch(63.9% 0.104 216.9);

Tailwind

colors: {
  custom: {
    50: '#79b8cb',
    500: '#279bb5',
    950: '#000000',
  },
}

SCSS

$custom: #279bb5;
$custom-light: #79b8cb;
$custom-dark: #000000;

JSON

{
  "hex": "#279bb5",
  "rgb": {
    "r": 39,
    "g": 155,
    "b": 181
  },
  "hsl": {
    "h": 190.986,
    "s": 64.545,
    "l": 43.137
  },
  "oklch": {
    "l": 0.63908,
    "c": 0.10446,
    "h": 216.9
  },
  "luminance": 0.2721
}

Semantic roles & 50–950 ramp

primary

#279BB5

secondary

#C9806F

accent

#5F40E8

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #279BB5

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

Preview Lab → · Contrast checker → · Palette generator →