#278DBA#278DBA

#278DBA is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.7% C 0.112 H 232.6°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#278DBA
RGB	rgb(39, 141, 186)
HSL	hsl(198, 65%, 44%)
HSV	hsv(198, 79%, 73%)
CMYK	cmyk(79%, 24.2%, 0%, 27.1%)
CIE-LAB	lab(55.10, -12.97, -31.59)
CIE-LCH	lch(55.10, 34.15, 247.68°)
OKLab	oklab(60.71% -0.0681 -0.089)
OKLCH	oklch(60.71% 0.112 232.6)
XYZ	xyz(19.2209, 23.0239, 49.8759)
Luminance	0.2303 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278DBA #BA5427

analogous

#27BA9E #278DBA #2744BA

triadic

#278DBA #BA278D #8DBA27

tetradic

#278DBA #9E27BA #BA5427 #44BA27

square

#278DBA #9E27BA #BA5427 #44BA27

split-complementary

#278DBA #BA2744 #BA9E27

monochromatic

#124055 #1C6787 #278DBA #46ABD8 #79C2E3

Accessibility & contrast

On white

3.75

#278DBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#278DBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278DBA

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278DBA	#FFFFFF	#000000	##000000
##278DBA	1.00	3.75	5.61	5.61
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778CBC

Deuteranopia (green-blind)

#637EB9

Tritanopia (blue-blind)

#00999C

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #278dba;
/* rgb */ color: rgb(39, 141, 186);
/* oklch */ color: oklch(60.7% 0.112 232.6);

Tailwind

colors: {
  custom: {
    50: '#79aecf',
    500: '#278dba',
    950: '#000000',
  },
}

SCSS

$custom: #278dba;
$custom-light: #79aecf;
$custom-dark: #000000;

JSON

{
  "hex": "#278dba",
  "rgb": {
    "r": 39,
    "g": 141,
    "b": 186
  },
  "hsl": {
    "h": 198.367,
    "s": 65.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.60713,
    "c": 0.11211,
    "h": 232.6
  },
  "luminance": 0.23026
}

Semantic roles & 50–950 ramp

primary

#278DBA

secondary

#CB8D72

accent

#7340E8

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #278DBA

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

Preview Lab → · Contrast checker → · Palette generator →