#277FA5#277FA5

#277FA5 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.3% C 0.099 H 231.3°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#277FA5
RGB	rgb(39, 127, 165)
HSL	hsl(198, 62%, 40%)
HSV	hsv(198, 76%, 65%)
CMYK	cmyk(76.4%, 23%, 0%, 35.3%)
CIE-LAB	lab(49.89, -12.51, -27.61)
CIE-LCH	lch(49.89, 30.32, 245.62°)
OKLab	oklab(56.25% -0.0621 -0.0777)
OKLCH	oklch(56.25% 0.099 231.3)
XYZ	xyz(15.2149, 18.3249, 38.3252)
Luminance	0.1833 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FA5 #A54D27

analogous

#27A58C #277FA5 #2740A5

triadic

#277FA5 #A5277F #7FA527

tetradic

#277FA5 #8C27A5 #A54D27 #40A527

square

#277FA5 #8C27A5 #A54D27 #40A527

split-complementary

#277FA5 #A52740 #A58C27

monochromatic

#103342 #1B5974 #277FA5 #39A3D0 #6ABADC

Accessibility & contrast

On white

4.50

#277FA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#277FA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FA5

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FA5	#FFFFFF	#000000	##000000
##277FA5	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7DA7

Deuteranopia (green-blind)

#5B71A4

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #277fa5;
/* rgb */ color: rgb(39, 127, 165);
/* oklch */ color: oklch(56.3% 0.099 231.3);

Tailwind

colors: {
  custom: {
    50: '#74a4c0',
    500: '#277fa5',
    950: '#000000',
  },
}

SCSS

$custom: #277fa5;
$custom-light: #74a4c0;
$custom-dark: #000000;

JSON

{
  "hex": "#277fa5",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 165
  },
  "hsl": {
    "h": 198.095,
    "s": 61.765,
    "l": 40
  },
  "oklch": {
    "l": 0.56254,
    "c": 0.09946,
    "h": 231.3
  },
  "luminance": 0.18327
}

Semantic roles & 50–950 ramp

primary

#277FA5

secondary

#C28266

accent

#7443E5

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277FA5

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

Preview Lab → · Contrast checker → · Palette generator →