#277CA0#277CA0

#277CA0 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.3% C 0.096 H 230.7°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#277CA0
RGB	rgb(39, 124, 160)
HSL	hsl(198, 61%, 39%)
HSV	hsv(198, 76%, 63%)
CMYK	cmyk(75.6%, 22.5%, 0%, 37.3%)
CIE-LAB	lab(48.74, -12.58, -26.48)
CIE-LCH	lch(48.74, 29.32, 244.59°)
OKLab	oklab(55.27% -0.061 -0.0744)
OKLCH	oklch(55.27% 0.096 230.7)
XYZ	xyz(14.3870, 17.3830, 35.8479)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277CA0 #A04B27

analogous

#27A088 #277CA0 #2740A0

triadic

#277CA0 #A0277C #7CA027

tetradic

#277CA0 #8827A0 #A04B27 #40A027

square

#277CA0 #8827A0 #A04B27 #40A027

split-complementary

#277CA0 #A02740 #A08827

monochromatic

#0F303E #1B566F #277CA0 #36A1CE #67B8DA

Accessibility & contrast

On white

4.69

#277CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#277CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #277CA0

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277CA0	#FFFFFF	#000000	##FFFFFF
##277CA0	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)

#6A7AA2

Deuteranopia (green-blind)

#596F9F

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #277ca0;
/* rgb */ color: rgb(39, 124, 160);
/* oklch */ color: oklch(55.3% 0.096 230.7);

Tailwind

colors: {
  custom: {
    50: '#73a2bc',
    500: '#277ca0',
    950: '#000000',
  },
}

SCSS

$custom: #277ca0;
$custom-light: #73a2bc;
$custom-dark: #000000;

JSON

{
  "hex": "#277ca0",
  "rgb": {
    "r": 39,
    "g": 124,
    "b": 160
  },
  "hsl": {
    "h": 197.851,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55265,
    "c": 0.09622,
    "h": 230.7
  },
  "luminance": 0.17385
}

Semantic roles & 50–950 ramp

primary

#277CA0

secondary

#C07F63

accent

#7344E4

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #277CA0

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

Preview Lab → · Contrast checker → · Palette generator →