#277B8F#277B8F

#277B8F is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.2% C 0.084 H 217.1°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#277B8F
RGB	rgb(39, 123, 143)
HSL	hsl(192, 57%, 36%)
HSV	hsv(192, 73%, 56%)
CMYK	cmyk(72.7%, 14%, 0%, 43.9%)
CIE-LAB	lab(47.73, -17.89, -18.07)
CIE-LCH	lch(47.73, 25.42, 225.29°)
OKLab	oklab(54.22% -0.0667 -0.0504)
OKLCH	oklch(54.22% 0.084 217.1)
XYZ	xyz(12.8755, 16.5789, 28.5028)
Luminance	0.1658 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277B8F #8F3B27

analogous

#278F6F #277B8F #27478F

triadic

#277B8F #8F277B #7B8F27

tetradic

#277B8F #6F278F #8F3B27 #478F27

square

#277B8F #6F278F #8F3B27 #478F27

split-complementary

#277B8F #8F2747 #8F6F27

monochromatic

#0D282F #1A525F #277B8F #34A4BF #5DBCD3

Accessibility & contrast

On white

4.87

#277B8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#277B8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277B8F

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277B8F	#FFFFFF	#000000	##FFFFFF
##277B8F	1.00	4.87	4.32	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7790

Deuteranopia (green-blind)

#5F6D8F

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #277b8f;
/* rgb */ color: rgb(39, 123, 143);
/* oklch */ color: oklch(54.2% 0.084 217.1);

Tailwind

colors: {
  custom: {
    50: '#70a1af',
    500: '#277b8f',
    950: '#000000',
  },
}

SCSS

$custom: #277b8f;
$custom-light: #70a1af;
$custom-dark: #000000;

JSON

{
  "hex": "#277b8f",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 143
  },
  "hsl": {
    "h": 191.538,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.54221,
    "c": 0.08356,
    "h": 217.1
  },
  "luminance": 0.1658
}

Semantic roles & 50–950 ramp

primary

#277B8F

secondary

#B86C5A

accent

#6547E0

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #277B8F

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

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