#277DA0#277DA0

#277DA0 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.5% C 0.096 H 229.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#277DA0
RGB	rgb(39, 125, 160)
HSL	hsl(197, 61%, 39%)
HSV	hsv(197, 76%, 63%)
CMYK	cmyk(75.6%, 21.9%, 0%, 37.3%)
CIE-LAB	lab(49.05, -13.14, -26.00)
CIE-LCH	lch(49.05, 29.13, 243.18°)
OKLab	oklab(55.51% -0.062 -0.073)
OKLCH	oklch(55.51% 0.096 229.7)
XYZ	xyz(14.5129, 17.6349, 35.8899)
Luminance	0.1764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277DA0 #A04A27

analogous

#27A087 #277DA0 #2741A0

triadic

#277DA0 #A0277D #7DA027

tetradic

#277DA0 #8727A0 #A04A27 #41A027

square

#277DA0 #8727A0 #A04A27 #41A027

split-complementary

#277DA0 #A02741 #A08727

monochromatic

#0F303E #1B576F #277DA0 #36A2CE #67B9DA

Accessibility & contrast

On white

4.64

#277DA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#277DA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #277DA0

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277DA0	#FFFFFF	#000000	##FFFFFF
##277DA0	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7BA2

Deuteranopia (green-blind)

#5B6FA0

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277da0;
/* rgb */ color: rgb(39, 125, 160);
/* oklch */ color: oklch(55.5% 0.096 229.7);

Tailwind

colors: {
  custom: {
    50: '#73a2bc',
    500: '#277da0',
    950: '#000000',
  },
}

SCSS

$custom: #277da0;
$custom-light: #73a2bc;
$custom-dark: #000000;

JSON

{
  "hex": "#277da0",
  "rgb": {
    "r": 39,
    "g": 125,
    "b": 160
  },
  "hsl": {
    "h": 197.355,
    "s": 60.804,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55514,
    "c": 0.09579,
    "h": 229.7
  },
  "luminance": 0.17637
}

Semantic roles & 50–950 ramp

primary

#277DA0

secondary

#C07E63

accent

#7244E4

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277DA0

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

Preview Lab → · Contrast checker → · Palette generator →