#277E9C#277E9C

#277E9C is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.6% C 0.092 H 225.5°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#277E9C
RGB	rgb(39, 126, 156)
HSL	hsl(195, 60%, 38%)
HSV	hsv(195, 75%, 61%)
CMYK	cmyk(75%, 19.2%, 0%, 38.8%)
CIE-LAB	lab(49.19, -15.10, -23.44)
CIE-LCH	lch(49.19, 27.89, 237.21°)
OKLab	oklab(55.57% -0.0645 -0.0657)
OKLCH	oklch(55.57% 0.092 225.5)
XYZ	xyz(14.2958, 17.7517, 34.1190)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277E9C #9C4527

analogous

#279C7F #277E9C #27439C

triadic

#277E9C #9C277E #7E9C27

tetradic

#277E9C #7F279C #9C4527 #439C27

square

#277E9C #7F279C #9C4527 #439C27

split-complementary

#277E9C #9C2743 #9C7F27

monochromatic

#0F2F3A #1B566B #277E9C #34A5CC #65BBD8

Accessibility & contrast

On white

4.61

#277E9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#277E9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277E9C

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277E9C	#FFFFFF	#000000	##FFFFFF
##277E9C	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7B9E

Deuteranopia (green-blind)

#5E709C

Tritanopia (blue-blind)

#008788

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277e9c;
/* rgb */ color: rgb(39, 126, 156);
/* oklch */ color: oklch(55.6% 0.092 225.5);

Tailwind

colors: {
  custom: {
    50: '#73a3b9',
    500: '#277e9c',
    950: '#000000',
  },
}

SCSS

$custom: #277e9c;
$custom-light: #73a3b9;
$custom-dark: #000000;

JSON

{
  "hex": "#277e9c",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 156
  },
  "hsl": {
    "h": 195.385,
    "s": 60,
    "l": 38.235
  },
  "oklch": {
    "l": 0.55572,
    "c": 0.09208,
    "h": 225.5
  },
  "luminance": 0.17753
}

Semantic roles & 50–950 ramp

primary

#277E9C

secondary

#BE7961

accent

#6D45E3

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277E9C

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

Preview Lab → · Contrast checker → · Palette generator →