#277AC4#277AC4

#277AC4 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.8% C 0.138 H 249.8°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#277AC4
RGB	rgb(39, 122, 196)
HSL	hsl(208, 67%, 46%)
HSV	hsv(208, 80%, 77%)
CMYK	cmyk(80.1%, 37.8%, 0%, 23.1%)
CIE-LAB	lab(49.90, 1.78, -45.49)
CIE-LCH	lch(49.90, 45.52, 272.25°)
OKLab	oklab(56.76% -0.0478 -0.1298)
OKLCH	oklch(56.76% 0.138 249.8)
XYZ	xyz(17.7562, 18.3338, 54.8168)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277AC4 #C47127

analogous

#27C4BF #277AC4 #272BC4

triadic

#277AC4 #C4277A #7AC427

tetradic

#277AC4 #BF27C4 #C47127 #2BC427

square

#277AC4 #BF27C4 #C47127 #2BC427

split-complementary

#277AC4 #C4272B #C4BF27

monochromatic

#133A5E #1D5A91 #277AC4 #4D98DC #80B6E6

Accessibility & contrast

On white

4.50

#277AC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#277AC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277AC4

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277AC4	#FFFFFF	#000000	##000000
##277AC4	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577EC7

Deuteranopia (green-blind)

#3F70C3

Tritanopia (blue-blind)

#008C95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #277ac4;
/* rgb */ color: rgb(39, 122, 196);
/* oklch */ color: oklch(56.8% 0.138 249.8);

Tailwind

colors: {
  custom: {
    50: '#7aa0d6',
    500: '#277ac4',
    950: '#000000',
  },
}

SCSS

$custom: #277ac4;
$custom-light: #7aa0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#277ac4",
  "rgb": {
    "r": 39,
    "g": 122,
    "b": 196
  },
  "hsl": {
    "h": 208.28,
    "s": 66.809,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56761,
    "c": 0.13829,
    "h": 249.8
  },
  "luminance": 0.18336
}

Semantic roles & 50–950 ramp

primary

#277AC4

secondary

#CEA179

accent

#8F3EEA

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #277AC4

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

Preview Lab → · Contrast checker → · Palette generator →