#277F99#277F99

#277F99 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.7% C 0.090 H 221.9°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#277F99
RGB	rgb(39, 127, 153)
HSL	hsl(194, 59%, 38%)
HSV	hsv(194, 75%, 60%)
CMYK	cmyk(74.5%, 17%, 0%, 40%)
CIE-LAB	lab(49.38, -16.69, -21.39)
CIE-LCH	lch(49.38, 27.13, 232.05°)
OKLab	oklab(55.68% -0.0667 -0.0598)
OKLCH	oklch(55.68% 0.09 221.9)
XYZ	xyz(14.1735, 17.9083, 32.8405)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277F99 #994127

analogous

#27997A #277F99 #274699

triadic

#277F99 #99277F #7F9927

tetradic

#277F99 #7A2799 #994127 #469927

square

#277F99 #7A2799 #994127 #469927

split-complementary

#277F99 #992746 #997A27

monochromatic

#0E2E37 #1B5768 #277F99 #33A7CA #63BDD7

Accessibility & contrast

On white

4.58

#277F99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#277F99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277F99

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277F99	#FFFFFF	#000000	##000000
##277F99	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707C9A

Deuteranopia (green-blind)

#607099

Tritanopia (blue-blind)

#008787

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277f99;
/* rgb */ color: rgb(39, 127, 153);
/* oklch */ color: oklch(55.7% 0.090 221.9);

Tailwind

colors: {
  custom: {
    50: '#72a4b7',
    500: '#277f99',
    950: '#000000',
  },
}

SCSS

$custom: #277f99;
$custom-light: #72a4b7;
$custom-dark: #000000;

JSON

{
  "hex": "#277f99",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 153
  },
  "hsl": {
    "h": 193.684,
    "s": 59.375,
    "l": 37.647
  },
  "oklch": {
    "l": 0.55685,
    "c": 0.08963,
    "h": 221.9
  },
  "luminance": 0.1791
}

Semantic roles & 50–950 ramp

primary

#277F99

secondary

#BD745F

accent

#6945E3

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277F99

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

Preview Lab → · Contrast checker → · Palette generator →