#278FBA#278FBA

#278FBA is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.2% C 0.111 H 230.9°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#278FBA
RGB	rgb(39, 143, 186)
HSL	hsl(198, 65%, 44%)
HSV	hsv(198, 79%, 73%)
CMYK	cmyk(79%, 23.1%, 0%, 27.1%)
CIE-LAB	lab(55.70, -14.08, -30.65)
CIE-LCH	lch(55.70, 33.73, 245.32°)
OKLab	oklab(61.2% -0.07 -0.0863)
OKLCH	oklch(61.2% 0.111 230.9)
XYZ	xyz(19.5185, 23.6190, 49.9751)
Luminance	0.2362 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#278FBA #BA5227

analogous

#27BA9C #278FBA #2746BA

triadic

#278FBA #BA278F #8FBA27

tetradic

#278FBA #9C27BA #BA5227 #46BA27

square

#278FBA #9C27BA #BA5227 #46BA27

split-complementary

#278FBA #BA2746 #BA9C27

monochromatic

#124155 #1C6887 #278FBA #46ADD8 #79C4E3

Accessibility & contrast

On white

3.67

#278FBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#278FBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #278FBA

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##278FBA	#FFFFFF	#000000	##000000
##278FBA	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798DBC

Deuteranopia (green-blind)

#667FB9

Tritanopia (blue-blind)

#009B9D

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #278fba;
/* rgb */ color: rgb(39, 143, 186);
/* oklch */ color: oklch(61.2% 0.111 230.9);

Tailwind

colors: {
  custom: {
    50: '#79afcf',
    500: '#278fba',
    950: '#000000',
  },
}

SCSS

$custom: #278fba;
$custom-light: #79afcf;
$custom-dark: #000000;

JSON

{
  "hex": "#278fba",
  "rgb": {
    "r": 39,
    "g": 143,
    "b": 186
  },
  "hsl": {
    "h": 197.551,
    "s": 65.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.61198,
    "c": 0.11112,
    "h": 230.9
  },
  "luminance": 0.23621
}

Semantic roles & 50–950 ramp

primary

#278FBA

secondary

#CB8C72

accent

#7140E8

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #278FBA

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

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