#277DB0#277DB0

#277DB0 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.112 H 239.8°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#277DB0
RGB	rgb(39, 125, 176)
HSL	hsl(202, 64%, 42%)
HSV	hsv(202, 78%, 69%)
CMYK	cmyk(77.8%, 29%, 0%, 31%)
CIE-LAB	lab(49.78, -7.42, -34.17)
CIE-LCH	lch(49.78, 34.96, 257.75°)
OKLab	oklab(56.33% -0.0563 -0.0967)
OKLCH	oklch(56.33% 0.112 239.8)
XYZ	xyz(16.0037, 18.2312, 43.7414)
Luminance	0.1823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277DB0 #B05A27

analogous

#27B09F #277DB0 #2738B0

triadic

#277DB0 #B0277D #7DB027

tetradic

#277DB0 #9F27B0 #B05A27 #38B027

square

#277DB0 #9F27B0 #B05A27 #38B027

split-complementary

#277DB0 #B02738 #B09F27

monochromatic

#11364C #1C597E #277DB0 #409DD5 #72B7E0

Accessibility & contrast

On white

4.52

#277DB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#277DB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277DB0

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277DB0	#FFFFFF	#000000	##000000
##277DB0	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)

#657DB2

Deuteranopia (green-blind)

#5271AF

Tritanopia (blue-blind)

#008A8F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #277db0;
/* rgb */ color: rgb(39, 125, 176);
/* oklch */ color: oklch(56.3% 0.112 239.8);

Tailwind

colors: {
  custom: {
    50: '#76a2c8',
    500: '#277db0',
    950: '#000000',
  },
}

SCSS

$custom: #277db0;
$custom-light: #76a2c8;
$custom-dark: #000000;

JSON

{
  "hex": "#277db0",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 176
  },
  "hsl": {
    "h": 202.336,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.5633,
    "c": 0.11189,
    "h": 239.8
  },
  "luminance": 0.18233
}

Semantic roles & 50–950 ramp

primary

#277DB0

secondary

#C78E6C

accent

#7F41E7

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #277DB0

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

Preview Lab → · Contrast checker → · Palette generator →