#277C91#277C91

#277C91 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.6% C 0.085 H 217.9°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#277C91
RGB	rgb(39, 124, 145)
HSL	hsl(192, 58%, 36%)
HSV	hsv(192, 73%, 57%)
CMYK	cmyk(73.1%, 14.5%, 0%, 43.1%)
CIE-LAB	lab(48.12, -17.76, -18.64)
CIE-LCH	lch(48.12, 25.75, 226.39°)
OKLab	oklab(54.57% -0.0669 -0.052)
OKLCH	oklch(54.57% 0.085 217.9)
XYZ	xyz(13.1530, 16.8894, 29.3494)
Luminance	0.1689 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277C91 #913C27

analogous

#279171 #277C91 #274791

triadic

#277C91 #91277C #7C9127

tetradic

#277C91 #712791 #913C27 #479127

square

#277C91 #712791 #913C27 #479127

split-complementary

#277C91 #912747 #917127

monochromatic

#0D2A31 #1A5361 #277C91 #34A5C1 #5FBDD4

Accessibility & contrast

On white

4.80

#277C91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#277C91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277C91

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277C91	#FFFFFF	#000000	##FFFFFF
##277C91	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)

#6E7892

Deuteranopia (green-blind)

#606E91

Tritanopia (blue-blind)

#008383

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #277c91;
/* rgb */ color: rgb(39, 124, 145);
/* oklch */ color: oklch(54.6% 0.085 217.9);

Tailwind

colors: {
  custom: {
    50: '#71a2b1',
    500: '#277c91',
    950: '#000000',
  },
}

SCSS

$custom: #277c91;
$custom-light: #71a2b1;
$custom-dark: #000000;

JSON

{
  "hex": "#277c91",
  "rgb": {
    "r": 39,
    "g": 124,
    "b": 145
  },
  "hsl": {
    "h": 191.887,
    "s": 57.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.54565,
    "c": 0.08472,
    "h": 217.9
  },
  "luminance": 0.16891
}

Semantic roles & 50–950 ramp

primary

#277C91

secondary

#B96D5B

accent

#6547E1

background

#F7F9FA

surface

#EDF2F5

border

#C8CCCF

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #277C91

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

Preview Lab → · Contrast checker → · Palette generator →