#277FB0#277FB0

#277FB0 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.8% C 0.110 H 238.2°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#277FB0
RGB	rgb(39, 127, 176)
HSL	hsl(201, 64%, 42%)
HSV	hsv(201, 78%, 69%)
CMYK	cmyk(77.8%, 27.8%, 0%, 31%)
CIE-LAB	lab(50.38, -8.58, -33.21)
CIE-LCH	lch(50.38, 34.30, 255.51°)
OKLab	oklab(56.81% -0.0583 -0.0939)
OKLCH	oklch(56.81% 0.11 238.2)
XYZ	xyz(16.2594, 18.7427, 43.8266)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FB0 #B05827

analogous

#27B09D #277FB0 #273AB0

triadic

#277FB0 #B0277F #7FB027

tetradic

#277FB0 #9D27B0 #B05827 #3AB027

square

#277FB0 #9D27B0 #B05827 #3AB027

split-complementary

#277FB0 #B0273A #B09D27

monochromatic

#11374C #1C5B7E #277FB0 #409FD5 #72B8E0

Accessibility & contrast

On white

4.42

#277FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#277FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FB0

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FB0	#FFFFFF	#000000	##000000
##277FB0	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687FB2

Deuteranopia (green-blind)

#5572AF

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #277fb0;
/* rgb */ color: rgb(39, 127, 176);
/* oklch */ color: oklch(56.8% 0.110 238.2);

Tailwind

colors: {
  custom: {
    50: '#76a4c8',
    500: '#277fb0',
    950: '#000000',
  },
}

SCSS

$custom: #277fb0;
$custom-light: #76a4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#277fb0",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 176
  },
  "hsl": {
    "h": 201.46,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.56813,
    "c": 0.11048,
    "h": 238.2
  },
  "luminance": 0.18745
}

Semantic roles & 50–950 ramp

primary

#277FB0

secondary

#C78C6C

accent

#7C41E7

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #277FB0

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

Preview Lab → · Contrast checker → · Palette generator →