#277999#277999

#277999 is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.2% C 0.091 H 228.4°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#277999
RGB	rgb(39, 121, 153)
HSL	hsl(197, 59%, 38%)
HSV	hsv(197, 75%, 60%)
CMYK	cmyk(74.5%, 20.9%, 0%, 40%)
CIE-LAB	lab(47.50, -13.34, -24.30)
CIE-LCH	lch(47.50, 27.72, 241.24°)
OKLab	oklab(54.18% -0.0606 -0.0682)
OKLCH	oklch(54.18% 0.091 228.4)
XYZ	xyz(13.4215, 16.4044, 32.5898)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277999 #994727

analogous

#279980 #277999 #274099

triadic

#277999 #992779 #799927

tetradic

#277999 #802799 #994727 #409927

square

#277999 #802799 #994727 #409927

split-complementary

#277999 #992740 #998027

monochromatic

#0E2C37 #1B5268 #277999 #33A0CA #63B7D7

Accessibility & contrast

On white

4.91

#277999 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#277999 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277999

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277999	#FFFFFF	#000000	##FFFFFF
##277999	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68779B

Deuteranopia (green-blind)

#596C99

Tritanopia (blue-blind)

#008284

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #277999;
/* rgb */ color: rgb(39, 121, 153);
/* oklch */ color: oklch(54.2% 0.091 228.4);

Tailwind

colors: {
  custom: {
    50: '#729fb7',
    500: '#277999',
    950: '#000000',
  },
}

SCSS

$custom: #277999;
$custom-light: #729fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#277999",
  "rgb": {
    "r": 39,
    "g": 121,
    "b": 153
  },
  "hsl": {
    "h": 196.842,
    "s": 59.375,
    "l": 37.647
  },
  "oklch": {
    "l": 0.54176,
    "c": 0.09119,
    "h": 228.4
  },
  "luminance": 0.16406
}

Semantic roles & 50–950 ramp

primary

#277999

secondary

#BD795F

accent

#7145E3

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #277999

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

Preview Lab → · Contrast checker → · Palette generator →