#277FA3#277FA3

#277FA3 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.2% C 0.098 H 229.9°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#277FA3
RGB	rgb(39, 127, 163)
HSL	hsl(197, 61%, 40%)
HSV	hsv(197, 76%, 64%)
CMYK	cmyk(76.1%, 22.1%, 0%, 36.1%)
CIE-LAB	lab(49.80, -13.22, -26.58)
CIE-LCH	lch(49.80, 29.69, 243.56°)
OKLab	oklab(56.16% -0.0629 -0.0747)
OKLCH	oklch(56.16% 0.098 229.9)
XYZ	xyz(15.0342, 18.2526, 37.3740)
Luminance	0.1825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FA3 #A34B27

analogous

#27A389 #277FA3 #2741A3

triadic

#277FA3 #A3277F #7FA327

tetradic

#277FA3 #8927A3 #A34B27 #41A327

square

#277FA3 #8927A3 #A34B27 #41A327

split-complementary

#277FA3 #A32741 #A38927

monochromatic

#0F3240 #1B5972 #277FA3 #38A3CF #69BADB

Accessibility & contrast

On white

4.52

#277FA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#277FA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FA3

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FA3	#FFFFFF	#000000	##000000
##277FA3	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7DA5

Deuteranopia (green-blind)

#5C71A2

Tritanopia (blue-blind)

#00898B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #277fa3;
/* rgb */ color: rgb(39, 127, 163);
/* oklch */ color: oklch(56.2% 0.098 229.9);

Tailwind

colors: {
  custom: {
    50: '#74a4be',
    500: '#277fa3',
    950: '#000000',
  },
}

SCSS

$custom: #277fa3;
$custom-light: #74a4be;
$custom-dark: #000000;

JSON

{
  "hex": "#277fa3",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 163
  },
  "hsl": {
    "h": 197.419,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.56156,
    "c": 0.09764,
    "h": 229.9
  },
  "luminance": 0.18254
}

Semantic roles & 50–950 ramp

primary

#277FA3

secondary

#C17F64

accent

#7243E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277FA3

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

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