#277A9F#277A9F

#277A9F is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.7% C 0.096 H 231.9°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#277A9F
RGB	rgb(39, 122, 159)
HSL	hsl(199, 61%, 39%)
HSV	hsv(199, 75%, 62%)
CMYK	cmyk(75.5%, 23.3%, 0%, 37.6%)
CIE-LAB	lab(48.07, -11.79, -26.93)
CIE-LCH	lch(48.07, 29.40, 246.35°)
OKLab	oklab(54.72% -0.0593 -0.0757)
OKLCH	oklch(54.72% 0.096 231.9)
XYZ	xyz(14.0517, 16.8520, 35.3063)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277A9F #9F4C27

analogous

#279F88 #277A9F #273E9F

triadic

#277A9F #9F277A #7A9F27

tetradic

#277A9F #88279F #9F4C27 #3E9F27

square

#277A9F #88279F #9F4C27 #3E9F27

split-complementary

#277A9F #9F273E #9F8827

monochromatic

#0F2F3D #1B546E #277A9F #369FCE #67B6DA

Accessibility & contrast

On white

4.80

#277A9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#277A9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277A9F

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277A9F	#FFFFFF	#000000	##FFFFFF
##277A9F	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6779A1

Deuteranopia (green-blind)

#576D9E

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #277a9f;
/* rgb */ color: rgb(39, 122, 159);
/* oklch */ color: oklch(54.7% 0.096 231.9);

Tailwind

colors: {
  custom: {
    50: '#73a0bb',
    500: '#277a9f',
    950: '#000000',
  },
}

SCSS

$custom: #277a9f;
$custom-light: #73a0bb;
$custom-dark: #000000;

JSON

{
  "hex": "#277a9f",
  "rgb": {
    "r": 39,
    "g": 122,
    "b": 159
  },
  "hsl": {
    "h": 198.5,
    "s": 60.606,
    "l": 38.824
  },
  "oklch": {
    "l": 0.54719,
    "c": 0.09621,
    "h": 231.9
  },
  "luminance": 0.16854
}

Semantic roles & 50–950 ramp

primary

#277A9F

secondary

#C07F62

accent

#7544E4

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #277A9F

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

Preview Lab → · Contrast checker → · Palette generator →