#278BA5#278BA5

#278BA5 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.2% C 0.096 H 219.5°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#278BA5
RGB	rgb(39, 139, 165)
HSL	hsl(192, 62%, 40%)
HSV	hsv(192, 76%, 65%)
CMYK	cmyk(76.4%, 15.8%, 0%, 35.3%)
CIE-LAB	lab(53.61, -19.13, -21.86)
CIE-LCH	lch(53.61, 29.05, 228.82°)
OKLab	oklab(59.24% -0.0741 -0.0611)
OKLCH	oklch(59.24% 0.096 219.5)
XYZ	xyz(16.8580, 21.6112, 38.8729)
Luminance	0.2161 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278BA5 #A54127

analogous

#27A580 #278BA5 #274CA5

triadic

#278BA5 #A5278B #8BA527

tetradic

#278BA5 #8027A5 #A54127 #4CA527

square

#278BA5 #8027A5 #A54127 #4CA527

split-complementary

#278BA5 #A5274C #A58027

monochromatic

#103842 #1B6174 #278BA5 #39B1D0 #6AC5DC

Accessibility & contrast

On white

3.95

#278BA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#278BA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278BA5

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278BA5	#FFFFFF	#000000	##000000
##278BA5	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B87A6

Deuteranopia (green-blind)

#6A7BA5

Tritanopia (blue-blind)

#009493

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #278ba5;
/* rgb */ color: rgb(39, 139, 165);
/* oklch */ color: oklch(59.2% 0.096 219.5);

Tailwind

colors: {
  custom: {
    50: '#75adbf',
    500: '#278ba5',
    950: '#000000',
  },
}

SCSS

$custom: #278ba5;
$custom-light: #75adbf;
$custom-dark: #000000;

JSON

{
  "hex": "#278ba5",
  "rgb": {
    "r": 39,
    "g": 139,
    "b": 165
  },
  "hsl": {
    "h": 192.381,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.59237,
    "c": 0.09607,
    "h": 219.5
  },
  "luminance": 0.21613
}

Semantic roles & 50–950 ramp

primary

#278BA5

secondary

#C27966

accent

#6443E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #278BA5

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

Preview Lab → · Contrast checker → · Palette generator →