#277FC4#277FC4

#277FC4 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 57.9% C 0.133 H 247.0°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#277FC4
RGB	rgb(39, 127, 196)
HSL	hsl(206, 67%, 46%)
HSV	hsv(206, 80%, 77%)
CMYK	cmyk(80.1%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(51.37, -1.24, -43.14)
CIE-LCH	lch(51.37, 43.16, 268.36°)
OKLab	oklab(57.92% -0.0521 -0.1228)
OKLCH	oklch(57.92% 0.133 247)
XYZ	xyz(18.3860, 19.5934, 55.0267)
Luminance	0.1960 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277FC4 #C46C27

analogous

#27C4BA #277FC4 #2731C4

triadic

#277FC4 #C4277F #7FC427

tetradic

#277FC4 #BA27C4 #C46C27 #31C427

square

#277FC4 #BA27C4 #C46C27 #31C427

split-complementary

#277FC4 #C42731 #C4BA27

monochromatic

#133D5E #1D5E91 #277FC4 #4D9DDC #80B9E6

Accessibility & contrast

On white

4.27

#277FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#277FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277FC4

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277FC4	#FFFFFF	#000000	##000000
##277FC4	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F82C7

Deuteranopia (green-blind)

#4874C3

Tritanopia (blue-blind)

#009098

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #277fc4;
/* rgb */ color: rgb(39, 127, 196);
/* oklch */ color: oklch(57.9% 0.133 247.0);

Tailwind

colors: {
  custom: {
    50: '#7aa3d6',
    500: '#277fc4',
    950: '#000000',
  },
}

SCSS

$custom: #277fc4;
$custom-light: #7aa3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#277fc4",
  "rgb": {
    "r": 39,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 206.369,
    "s": 66.809,
    "l": 46.078
  },
  "oklch": {
    "l": 0.5792,
    "c": 0.13344,
    "h": 247
  },
  "luminance": 0.19596
}

Semantic roles & 50–950 ramp

primary

#277FC4

secondary

#CE9E79

accent

#8A3EEA

background

#F8FAFD

surface

#EFF3FA

border

#CACDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #277FC4

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

Preview Lab → · Contrast checker → · Palette generator →