#277D9D#277D9D

#277D9D is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.4% C 0.093 H 227.4°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#277D9D
RGB	rgb(39, 125, 157)
HSL	hsl(196, 60%, 38%)
HSV	hsv(196, 75%, 62%)
CMYK	cmyk(75.2%, 20.4%, 0%, 38.4%)
CIE-LAB	lab(48.92, -14.20, -24.45)
CIE-LCH	lch(48.92, 28.27, 239.86°)
OKLab	oklab(55.37% -0.0631 -0.0686)
OKLCH	oklch(55.37% 0.093 227.4)
XYZ	xyz(14.2536, 17.5312, 34.5244)
Luminance	0.1753 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277D9D #9D4727

analogous

#279D82 #277D9D #27429D

triadic

#277D9D #9D277D #7D9D27

tetradic

#277D9D #82279D #9D4727 #429D27

square

#277D9D #82279D #9D4727 #429D27

split-complementary

#277D9D #9D2742 #9D8227

monochromatic

#0F2F3B #1B566C #277D9D #35A3CD #66BAD9

Accessibility & contrast

On white

4.66

#277D9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#277D9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277D9D

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277D9D	#FFFFFF	#000000	##FFFFFF
##277D9D	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7B9F

Deuteranopia (green-blind)

#5C6F9D

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277d9d;
/* rgb */ color: rgb(39, 125, 157);
/* oklch */ color: oklch(55.4% 0.093 227.4);

Tailwind

colors: {
  custom: {
    50: '#73a2ba',
    500: '#277d9d',
    950: '#000000',
  },
}

SCSS

$custom: #277d9d;
$custom-light: #73a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#277d9d",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 157
  },
  "hsl": {
    "h": 196.271,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55369,
    "c": 0.0932,
    "h": 227.4
  },
  "luminance": 0.17533
}

Semantic roles & 50–950 ramp

primary

#277D9D

secondary

#BF7A61

accent

#7044E3

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277D9D

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

Preview Lab → · Contrast checker → · Palette generator →