#277BA0#277BA0

#277BA0 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.0% C 0.097 H 231.7°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#277BA0
RGB	rgb(39, 123, 160)
HSL	hsl(198, 61%, 39%)
HSV	hsv(198, 76%, 63%)
CMYK	cmyk(75.6%, 23.1%, 0%, 37.3%)
CIE-LAB	lab(48.43, -12.01, -26.97)
CIE-LCH	lch(48.43, 29.52, 245.99°)
OKLab	oklab(55.02% -0.06 -0.0758)
OKLCH	oklch(55.02% 0.097 231.7)
XYZ	xyz(14.2623, 17.1336, 35.8063)
Luminance	0.1714 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277BA0 #A04C27

analogous

#27A089 #277BA0 #273FA0

triadic

#277BA0 #A0277B #7BA027

tetradic

#277BA0 #8927A0 #A04C27 #3FA027

square

#277BA0 #8927A0 #A04C27 #3FA027

split-complementary

#277BA0 #A0273F #A08927

monochromatic

#0F2F3E #1B556F #277BA0 #36A0CE #67B7DA

Accessibility & contrast

On white

4.74

#277BA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#277BA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277BA0

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277BA0	#FFFFFF	#000000	##FFFFFF
##277BA0	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687AA2

Deuteranopia (green-blind)

#586E9F

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #277ba0;
/* rgb */ color: rgb(39, 123, 160);
/* oklch */ color: oklch(55.0% 0.097 231.7);

Tailwind

colors: {
  custom: {
    50: '#73a1bc',
    500: '#277ba0',
    950: '#000000',
  },
}

SCSS

$custom: #277ba0;
$custom-light: #73a1bc;
$custom-dark: #000000;

JSON

{
  "hex": "#277ba0",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 160
  },
  "hsl": {
    "h": 198.347,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55017,
    "c": 0.09667,
    "h": 231.7
  },
  "luminance": 0.17135
}

Semantic roles & 50–950 ramp

primary

#277BA0

secondary

#C07F63

accent

#7544E4

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #277BA0

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

Preview Lab → · Contrast checker → · Palette generator →