#277D9E#277D9E

#277D9E is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.4% C 0.094 H 228.2°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#277D9E
RGB	rgb(39, 125, 158)
HSL	hsl(197, 60%, 39%)
HSV	hsv(197, 75%, 62%)
CMYK	cmyk(75.3%, 20.9%, 0%, 38%)
CIE-LAB	lab(48.96, -13.85, -24.96)
CIE-LCH	lch(48.96, 28.55, 240.99°)
OKLab	oklab(55.42% -0.0627 -0.0701)
OKLCH	oklch(55.42% 0.094 228.2)
XYZ	xyz(14.3394, 17.5655, 34.9759)
Luminance	0.1757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277D9E #9E4827

analogous

#279E83 #277D9E #27419E

triadic

#277D9E #9E277D #7D9E27

tetradic

#277D9E #83279E #9E4827 #419E27

square

#277D9E #83279E #9E4827 #419E27

split-complementary

#277D9E #9E2741 #9E8327

monochromatic

#0F2F3C #1B566D #277D9E #35A3CD #66B9D9

Accessibility & contrast

On white

4.65

#277D9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#277D9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277D9E

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277D9E	#FFFFFF	#000000	##FFFFFF
##277D9E	1.00	4.65	4.51	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7BA0

Deuteranopia (green-blind)

#5C6F9E

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277d9e;
/* rgb */ color: rgb(39, 125, 158);
/* oklch */ color: oklch(55.4% 0.094 228.2);

Tailwind

colors: {
  custom: {
    50: '#73a2ba',
    500: '#277d9e',
    950: '#000000',
  },
}

SCSS

$custom: #277d9e;
$custom-light: #73a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#277d9e",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 158
  },
  "hsl": {
    "h": 196.639,
    "s": 60.406,
    "l": 38.627
  },
  "oklch": {
    "l": 0.55417,
    "c": 0.09405,
    "h": 228.2
  },
  "luminance": 0.17567
}

Semantic roles & 50–950 ramp

primary

#277D9E

secondary

#BF7C62

accent

#7044E4

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277D9E

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

Preview Lab → · Contrast checker → · Palette generator →