#277E9E#277E9E

#277E9E is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.7% C 0.094 H 227.1°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#277E9E
RGB	rgb(39, 126, 158)
HSL	hsl(196, 60%, 39%)
HSV	hsv(196, 75%, 62%)
CMYK	cmyk(75.3%, 20.3%, 0%, 38%)
CIE-LAB	lab(49.28, -14.41, -24.48)
CIE-LCH	lch(49.28, 28.41, 239.52°)
OKLab	oklab(55.67% -0.0637 -0.0687)
OKLCH	oklch(55.67% 0.094 227.1)
XYZ	xyz(14.4666, 17.8200, 35.0183)
Luminance	0.1782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277E9E #9E4727

analogous

#279E82 #277E9E #27439E

triadic

#277E9E #9E277E #7E9E27

tetradic

#277E9E #82279E #9E4727 #439E27

square

#277E9E #82279E #9E4727 #439E27

split-complementary

#277E9E #9E2743 #9E8227

monochromatic

#0F303C #1B576D #277E9E #35A4CD #66BAD9

Accessibility & contrast

On white

4.60

#277E9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#277E9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277E9E

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277E9E	#FFFFFF	#000000	##FFFFFF
##277E9E	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7CA0

Deuteranopia (green-blind)

#5D709E

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277e9e;
/* rgb */ color: rgb(39, 126, 158);
/* oklch */ color: oklch(55.7% 0.094 227.1);

Tailwind

colors: {
  custom: {
    50: '#73a3ba',
    500: '#277e9e',
    950: '#000000',
  },
}

SCSS

$custom: #277e9e;
$custom-light: #73a3ba;
$custom-dark: #000000;

JSON

{
  "hex": "#277e9e",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 158
  },
  "hsl": {
    "h": 196.134,
    "s": 60.406,
    "l": 38.627
  },
  "oklch": {
    "l": 0.55667,
    "c": 0.0937,
    "h": 227.1
  },
  "luminance": 0.17822
}

Semantic roles & 50–950 ramp

primary

#277E9E

secondary

#BF7B62

accent

#6F44E4

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #277E9E

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

Preview Lab → · Contrast checker → · Palette generator →