#277AB0#277AB0

#277AB0 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.114 H 242.1°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#277AB0
RGB	rgb(39, 122, 176)
HSL	hsl(204, 64%, 42%)
HSV	hsv(204, 78%, 69%)
CMYK	cmyk(77.8%, 30.7%, 0%, 31%)
CIE-LAB	lab(48.86, -5.65, -35.60)
CIE-LCH	lch(48.86, 36.05, 260.98°)
OKLab	oklab(55.61% -0.0535 -0.1009)
OKLCH	oklch(55.61% 0.114 242.1)
XYZ	xyz(15.6296, 17.4831, 43.6167)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277AB0 #B05D27

analogous

#27B0A2 #277AB0 #2735B0

triadic

#277AB0 #B0277A #7AB027

tetradic

#277AB0 #A227B0 #B05D27 #35B027

square

#277AB0 #A227B0 #B05D27 #35B027

split-complementary

#277AB0 #B02735 #B0A227

monochromatic

#11354C #1C577E #277AB0 #409AD5 #72B4E0

Accessibility & contrast

On white

4.67

#277AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#277AB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277AB0

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277AB0	#FFFFFF	#000000	##FFFFFF
##277AB0	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#617BB2

Deuteranopia (green-blind)

#4E6EAF

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277ab0;
/* rgb */ color: rgb(39, 122, 176);
/* oklch */ color: oklch(55.6% 0.114 242.1);

Tailwind

colors: {
  custom: {
    50: '#76a0c8',
    500: '#277ab0',
    950: '#000000',
  },
}

SCSS

$custom: #277ab0;
$custom-light: #76a0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#277ab0",
  "rgb": {
    "r": 39,
    "g": 122,
    "b": 176
  },
  "hsl": {
    "h": 203.65,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.55607,
    "c": 0.11418,
    "h": 242.1
  },
  "luminance": 0.17485
}

Semantic roles & 50–950 ramp

primary

#277AB0

secondary

#C7906C

accent

#8241E7

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #277AB0

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

Preview Lab → · Contrast checker → · Palette generator →