#277EA0#277EA0

#277EA0 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.8% C 0.095 H 228.7°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#277EA0
RGB	rgb(39, 126, 160)
HSL	hsl(197, 61%, 39%)
HSV	hsv(197, 76%, 63%)
CMYK	cmyk(75.6%, 21.2%, 0%, 37.3%)
CIE-LAB	lab(49.36, -13.71, -25.52)
CIE-LCH	lch(49.36, 28.97, 241.75°)
OKLab	oklab(55.76% -0.063 -0.0716)
OKLCH	oklch(55.76% 0.095 228.7)
XYZ	xyz(14.6401, 17.8894, 35.9323)
Luminance	0.1789 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277EA0 #A04927

analogous

#27A086 #277EA0 #2741A0

triadic

#277EA0 #A0277E #7EA027

tetradic

#277EA0 #8627A0 #A04927 #41A027

square

#277EA0 #8627A0 #A04927 #41A027

split-complementary

#277EA0 #A02741 #A08627

monochromatic

#0F313E #1B576F #277EA0 #36A3CE #67BADA

Accessibility & contrast

On white

4.59

#277EA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#277EA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277EA0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277EA0	#FFFFFF	#000000	##FFFFFF
##277EA0	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA2

Deuteranopia (green-blind)

#5C70A0

Tritanopia (blue-blind)

#008889

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277ea0;
/* rgb */ color: rgb(39, 126, 160);
/* oklch */ color: oklch(55.8% 0.095 228.7);

Tailwind

colors: {
  custom: {
    50: '#73a3bc',
    500: '#277ea0',
    950: '#000000',
  },
}

SCSS

$custom: #277ea0;
$custom-light: #73a3bc;
$custom-dark: #000000;

JSON

{
  "hex": "#277ea0",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 160
  },
  "hsl": {
    "h": 196.86,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55762,
    "c": 0.09539,
    "h": 228.7
  },
  "luminance": 0.17891
}

Semantic roles & 50–950 ramp

primary

#277EA0

secondary

#C07D63

accent

#7144E4

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277EA0

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

Preview Lab → · Contrast checker → · Palette generator →