#277C8D#277C8D

#277C8D is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 54.4% C 0.083 H 213.9°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#277C8D
RGB	rgb(39, 124, 141)
HSL	hsl(190, 57%, 35%)
HSV	hsv(190, 72%, 55%)
CMYK	cmyk(72.3%, 12.1%, 0%, 44.7%)
CIE-LAB	lab(47.97, -19.10, -16.52)
CIE-LCH	lch(47.97, 25.25, 220.86°)
OKLab	oklab(54.39% -0.0686 -0.046)
OKLCH	oklch(54.39% 0.083 213.9)
XYZ	xyz(12.8500, 16.7682, 27.7535)
Luminance	0.1677 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277C8D #8D3827

analogous

#278D6B #277C8D #27498D

triadic

#277C8D #8D277C #7C8D27

tetradic

#277C8D #6B278D #8D3827 #498D27

square

#277C8D #6B278D #8D3827 #498D27

split-complementary

#277C8D #8D2749 #8D6B27

monochromatic

#0C282D #1A525D #277C8D #34A6BD #5CBED2

Accessibility & contrast

On white

4.82

#277C8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#277C8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277C8D

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277C8D	#FFFFFF	#000000	##FFFFFF
##277C8D	1.00	4.82	4.35	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#70788E

Deuteranopia (green-blind)

#616D8D

Tritanopia (blue-blind)

#008381

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #277c8d;
/* rgb */ color: rgb(39, 124, 141);
/* oklch */ color: oklch(54.4% 0.083 213.9);

Tailwind

colors: {
  custom: {
    50: '#70a2ae',
    500: '#277c8d',
    950: '#000000',
  },
}

SCSS

$custom: #277c8d;
$custom-light: #70a2ae;
$custom-dark: #000000;

JSON

{
  "hex": "#277c8d",
  "rgb": {
    "r": 39,
    "g": 124,
    "b": 141
  },
  "hsl": {
    "h": 190,
    "s": 56.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.5439,
    "c": 0.08258,
    "h": 213.9
  },
  "luminance": 0.1677
}

Semantic roles & 50–950 ramp

primary

#277C8D

secondary

#B76859

accent

#6148E0

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#080F10

muted

#7B7E7F

Preview Lab

Preview with #277C8D

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

Preview Lab → · Contrast checker → · Palette generator →