#277B99#277B99

#277B99 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.7% C 0.091 H 226.2°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#277B99
RGB	rgb(39, 123, 153)
HSL	hsl(196, 59%, 38%)
HSV	hsv(196, 75%, 60%)
CMYK	cmyk(74.5%, 19.6%, 0%, 40%)
CIE-LAB	lab(48.13, -14.47, -23.33)
CIE-LCH	lch(48.13, 27.45, 238.20°)
OKLab	oklab(54.68% -0.0626 -0.0654)
OKLCH	oklch(54.68% 0.091 226.2)
XYZ	xyz(13.6671, 16.8956, 32.6717)
Luminance	0.1690 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277B99 #994527

analogous

#27997E #277B99 #274299

triadic

#277B99 #99277B #7B9927

tetradic

#277B99 #7E2799 #994527 #429927

square

#277B99 #7E2799 #994527 #429927

split-complementary

#277B99 #992742 #997E27

monochromatic

#0E2D37 #1B5468 #277B99 #33A2CA #63B9D7

Accessibility & contrast

On white

4.80

#277B99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#277B99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277B99

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277B99	#FFFFFF	#000000	##FFFFFF
##277B99	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B799B

Deuteranopia (green-blind)

#5B6D99

Tritanopia (blue-blind)

#008485

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #277b99;
/* rgb */ color: rgb(39, 123, 153);
/* oklch */ color: oklch(54.7% 0.091 226.2);

Tailwind

colors: {
  custom: {
    50: '#72a1b7',
    500: '#277b99',
    950: '#000000',
  },
}

SCSS

$custom: #277b99;
$custom-light: #72a1b7;
$custom-dark: #000000;

JSON

{
  "hex": "#277b99",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 153
  },
  "hsl": {
    "h": 195.789,
    "s": 59.375,
    "l": 37.647
  },
  "oklch": {
    "l": 0.54678,
    "c": 0.09054,
    "h": 226.2
  },
  "luminance": 0.16897
}

Semantic roles & 50–950 ramp

primary

#277B99

secondary

#BD785F

accent

#6F45E3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #277B99

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

Preview Lab → · Contrast checker → · Palette generator →