#277FB1#277FB1

#277FB1 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.9% C 0.112 H 238.7°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#277FB1
RGB	rgb(39, 127, 177)
HSL	hsl(202, 64%, 42%)
HSV	hsv(202, 78%, 69%)
CMYK	cmyk(78%, 28.2%, 0%, 30.6%)
CIE-LAB	lab(50.43, -8.22, -33.72)
CIE-LCH	lch(50.43, 34.70, 256.30°)
OKLab	oklab(56.87% -0.0579 -0.0953)
OKLCH	oklch(56.87% 0.112 238.7)
XYZ	xyz(16.3587, 18.7824, 44.3496)
Luminance	0.1878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FB1 #B15927

analogous

#27B19E #277FB1 #273AB1

triadic

#277FB1 #B1277F #7FB127

tetradic

#277FB1 #9E27B1 #B15927 #3AB127

square

#277FB1 #9E27B1 #B15927 #3AB127

split-complementary

#277FB1 #B1273A #B19E27

monochromatic

#11374D #1C5B7F #277FB1 #409FD5 #72B8E0

Accessibility & contrast

On white

4.41

#277FB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#277FB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FB1

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FB1	#FFFFFF	#000000	##000000
##277FB1	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB3

Deuteranopia (green-blind)

#5572B0

Tritanopia (blue-blind)

#008C90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #277fb1;
/* rgb */ color: rgb(39, 127, 177);
/* oklch */ color: oklch(56.9% 0.112 238.7);

Tailwind

colors: {
  custom: {
    50: '#76a4c8',
    500: '#277fb1',
    950: '#000000',
  },
}

SCSS

$custom: #277fb1;
$custom-light: #76a4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#277fb1",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 177
  },
  "hsl": {
    "h": 201.739,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.56866,
    "c": 0.11155,
    "h": 238.7
  },
  "luminance": 0.18784
}

Semantic roles & 50–950 ramp

primary

#277FB1

secondary

#C78D6D

accent

#7D41E7

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #277FB1

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

Preview Lab → · Contrast checker → · Palette generator →