#277C8F#277C8F

#277C8F is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.5% C 0.084 H 215.9°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#277C8F
RGB	rgb(39, 124, 143)
HSL	hsl(191, 57%, 36%)
HSV	hsv(191, 73%, 56%)
CMYK	cmyk(72.7%, 13.3%, 0%, 43.9%)
CIE-LAB	lab(48.04, -18.43, -17.58)
CIE-LCH	lch(48.04, 25.47, 223.65°)
OKLab	oklab(54.48% -0.0677 -0.049)
OKLCH	oklch(54.48% 0.084 215.9)
XYZ	xyz(13.0002, 16.8283, 28.5443)
Luminance	0.1683 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277C8F #8F3A27

analogous

#278F6E #277C8F #27488F

triadic

#277C8F #8F277C #7C8F27

tetradic

#277C8F #6E278F #8F3A27 #488F27

square

#277C8F #6E278F #8F3A27 #488F27

split-complementary

#277C8F #8F2748 #8F6E27

monochromatic

#0D292F #1A525F #277C8F #34A6BF #5DBDD3

Accessibility & contrast

On white

4.81

#277C8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#277C8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277C8F

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277C8F	#FFFFFF	#000000	##FFFFFF
##277C8F	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7890

Deuteranopia (green-blind)

#616D8F

Tritanopia (blue-blind)

#008382

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #277c8f;
/* rgb */ color: rgb(39, 124, 143);
/* oklch */ color: oklch(54.5% 0.084 215.9);

Tailwind

colors: {
  custom: {
    50: '#71a2af',
    500: '#277c8f',
    950: '#000000',
  },
}

SCSS

$custom: #277c8f;
$custom-light: #71a2af;
$custom-dark: #000000;

JSON

{
  "hex": "#277c8f",
  "rgb": {
    "r": 39,
    "g": 124,
    "b": 143
  },
  "hsl": {
    "h": 190.962,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.54477,
    "c": 0.08359,
    "h": 215.9
  },
  "luminance": 0.1683
}

Semantic roles & 50–950 ramp

primary

#277C8F

secondary

#B86B5A

accent

#6347E0

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #277C8F

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

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