#277FA1#277FA1

#277FA1 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.1% C 0.096 H 228.4°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#277FA1
RGB	rgb(39, 127, 161)
HSL	hsl(197, 61%, 39%)
HSV	hsv(197, 76%, 63%)
CMYK	cmyk(75.8%, 21.1%, 0%, 36.9%)
CIE-LAB	lab(49.72, -13.92, -25.55)
CIE-LCH	lch(49.72, 29.10, 241.42°)
OKLab	oklab(56.06% -0.0636 -0.0717)
OKLCH	oklch(56.06% 0.096 228.4)
XYZ	xyz(14.8565, 18.1815, 36.4377)
Luminance	0.1818 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FA1 #A14927

analogous

#27A186 #277FA1 #2742A1

triadic

#277FA1 #A1277F #7FA127

tetradic

#277FA1 #8627A1 #A14927 #42A127

square

#277FA1 #8627A1 #A14927 #42A127

split-complementary

#277FA1 #A12742 #A18627

monochromatic

#0F313E #1B5870 #277FA1 #37A4CE #68BBDA

Accessibility & contrast

On white

4.53

#277FA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#277FA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FA1

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FA1	#FFFFFF	#000000	##000000
##277FA1	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7DA3

Deuteranopia (green-blind)

#5D71A1

Tritanopia (blue-blind)

#00898A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #277fa1;
/* rgb */ color: rgb(39, 127, 161);
/* oklch */ color: oklch(56.1% 0.096 228.4);

Tailwind

colors: {
  custom: {
    50: '#73a4bd',
    500: '#277fa1',
    950: '#000000',
  },
}

SCSS

$custom: #277fa1;
$custom-light: #73a4bd;
$custom-dark: #000000;

JSON

{
  "hex": "#277fa1",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 161
  },
  "hsl": {
    "h": 196.721,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.56059,
    "c": 0.09589,
    "h": 228.4
  },
  "luminance": 0.18183
}

Semantic roles & 50–950 ramp

primary

#277FA1

secondary

#C07D63

accent

#7044E4

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277FA1

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

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