#277BA6#277BA6

#277BA6 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.3% C 0.103 H 235.7°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#277BA6
RGB	rgb(39, 123, 166)
HSL	hsl(200, 62%, 40%)
HSV	hsv(200, 77%, 65%)
CMYK	cmyk(76.5%, 25.9%, 0%, 34.9%)
CIE-LAB	lab(48.70, -9.87, -30.05)
CIE-LCH	lch(48.70, 31.63, 251.82°)
OKLab	oklab(55.32% -0.0578 -0.0847)
OKLCH	oklch(55.32% 0.103 235.7)
XYZ	xyz(14.7999, 17.3487, 38.6376)
Luminance	0.1735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277BA6 #A65227

analogous

#27A691 #277BA6 #273BA6

triadic

#277BA6 #A6277B #7BA627

tetradic

#277BA6 #9127A6 #A65227 #3BA627

square

#277BA6 #9127A6 #A65227 #3BA627

split-complementary

#277BA6 #A6273B #A69127

monochromatic

#103243 #1B5674 #277BA6 #3A9DD1 #6BB6DC

Accessibility & contrast

On white

4.70

#277BA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#277BA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277BA6

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277BA6	#FFFFFF	#000000	##FFFFFF
##277BA6	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667AA8

Deuteranopia (green-blind)

#556EA5

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277ba6;
/* rgb */ color: rgb(39, 123, 166);
/* oklch */ color: oklch(55.3% 0.103 235.7);

Tailwind

colors: {
  custom: {
    50: '#74a1c0',
    500: '#277ba6',
    950: '#000000',
  },
}

SCSS

$custom: #277ba6;
$custom-light: #74a1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#277ba6",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 166
  },
  "hsl": {
    "h": 200.315,
    "s": 61.951,
    "l": 40.196
  },
  "oklch": {
    "l": 0.55319,
    "c": 0.10258,
    "h": 235.7
  },
  "luminance": 0.1735
}

Semantic roles & 50–950 ramp

primary

#277BA6

secondary

#C38566

accent

#7A43E5

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #277BA6

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

Preview Lab → · Contrast checker → · Palette generator →