#277E91#277E91

#277E91 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.1% C 0.085 H 215.5°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#277E91
RGB	rgb(39, 126, 145)
HSL	hsl(191, 58%, 36%)
HSV	hsv(191, 73%, 57%)
CMYK	cmyk(73.1%, 13.1%, 0%, 43.1%)
CIE-LAB	lab(48.75, -18.85, -17.67)
CIE-LCH	lch(48.75, 25.83, 223.16°)
OKLab	oklab(55.08% -0.069 -0.0492)
OKLCH	oklch(55.08% 0.085 215.5)
XYZ	xyz(13.4062, 17.3958, 29.4338)
Luminance	0.1740 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277E91 #913A27

analogous

#27916F #277E91 #274991

triadic

#277E91 #91277E #7E9127

tetradic

#277E91 #6F2791 #913A27 #499127

square

#277E91 #6F2791 #913A27 #499127

split-complementary

#277E91 #912749 #916F27

monochromatic

#0D2A31 #1A5461 #277E91 #34A8C1 #5FBFD4

Accessibility & contrast

On white

4.69

#277E91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#277E91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277E91

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277E91	#FFFFFF	#000000	##FFFFFF
##277E91	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#717A92

Deuteranopia (green-blind)

#626F91

Tritanopia (blue-blind)

#008584

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277e91;
/* rgb */ color: rgb(39, 126, 145);
/* oklch */ color: oklch(55.1% 0.085 215.5);

Tailwind

colors: {
  custom: {
    50: '#71a3b1',
    500: '#277e91',
    950: '#000000',
  },
}

SCSS

$custom: #277e91;
$custom-light: #71a3b1;
$custom-dark: #000000;

JSON

{
  "hex": "#277e91",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 145
  },
  "hsl": {
    "h": 190.755,
    "s": 57.609,
    "l": 36.078
  },
  "oklch": {
    "l": 0.55075,
    "c": 0.08477,
    "h": 215.5
  },
  "luminance": 0.17397
}

Semantic roles & 50–950 ramp

primary

#277E91

secondary

#B96C5B

accent

#6347E1

background

#F7FAFA

surface

#EDF4F5

border

#C8CECF

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #277E91

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

Preview Lab → · Contrast checker → · Palette generator →