#277B91#277B91

#277B91 is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.3% C 0.085 H 219.0°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#277B91
RGB	rgb(39, 123, 145)
HSL	hsl(192, 58%, 36%)
HSV	hsv(192, 73%, 57%)
CMYK	cmyk(73.1%, 15.2%, 0%, 43.1%)
CIE-LAB	lab(47.80, -17.21, -19.13)
CIE-LCH	lch(47.80, 25.73, 228.02°)
OKLab	oklab(54.31% -0.0658 -0.0534)
OKLCH	oklch(54.31% 0.085 219)
XYZ	xyz(13.0284, 16.6401, 29.3078)
Luminance	0.1664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277B91 #913D27

analogous

#279172 #277B91 #274691

triadic

#277B91 #91277B #7B9127

tetradic

#277B91 #722791 #913D27 #469127

square

#277B91 #722791 #913D27 #469127

split-complementary

#277B91 #912746 #917227

monochromatic

#0D2931 #1A5261 #277B91 #34A4C1 #5FBCD4

Accessibility & contrast

On white

4.85

#277B91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#277B91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277B91

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277B91	#FFFFFF	#000000	##FFFFFF
##277B91	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7892

Deuteranopia (green-blind)

#5F6D91

Tritanopia (blue-blind)

#008282

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #277b91;
/* rgb */ color: rgb(39, 123, 145);
/* oklch */ color: oklch(54.3% 0.085 219.0);

Tailwind

colors: {
  custom: {
    50: '#71a1b1',
    500: '#277b91',
    950: '#000000',
  },
}

SCSS

$custom: #277b91;
$custom-light: #71a1b1;
$custom-dark: #000000;

JSON

{
  "hex": "#277b91",
  "rgb": {
    "r": 39,
    "g": 123,
    "b": 145
  },
  "hsl": {
    "h": 192.453,
    "s": 57.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.5431,
    "c": 0.08476,
    "h": 219
  },
  "luminance": 0.16642
}

Semantic roles & 50–950 ramp

primary

#277B91

secondary

#B96E5B

accent

#6747E1

background

#F7F9FA

surface

#EDF2F5

border

#C8CCCF

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #277B91

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

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