#377FDE#377FDE

#377FDE is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 60.0% C 0.162 H 256.6°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#377FDE
RGB	rgb(55, 127, 222)
HSL	hsl(214, 72%, 54%)
HSV	hsv(214, 75%, 87%)
CMYK	cmyk(75.2%, 42.8%, 0%, 12.9%)
CIE-LAB	lab(53.24, 10.16, -54.89)
CIE-LCH	lch(53.24, 55.82, 280.49°)
OKLab	oklab(59.96% -0.0374 -0.1571)
OKLCH	oklch(59.96% 0.162 256.6)
XYZ	xyz(22.3449, 21.2623, 72.0195)
Luminance	0.2127 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FDE #DE9637

analogous

#37D2DE #377FDE #4337DE

triadic

#377FDE #DE377F #7FDE37

tetradic

#377FDE #DE37D2 #DE9637 #37DE43

square

#377FDE #DE37D2 #DE9637 #37DE43

split-complementary

#377FDE #DE4337 #D2DE37

monochromatic

#164685 #1F61B9 #377FDE #6CA1E7 #A0C2EF

Accessibility & contrast

On white

4.00

#377FDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#377FDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FDE

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FDE	#FFFFFF	#000000	##000000
##377FDE	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5087E2

Deuteranopia (green-blind)

#3178DC

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #377fde;
/* rgb */ color: rgb(55, 127, 222);
/* oklch */ color: oklch(60.0% 0.162 256.6);

Tailwind

colors: {
  custom: {
    50: '#84a3e9',
    500: '#377fde',
    950: '#000000',
  },
}

SCSS

$custom: #377fde;
$custom-light: #84a3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#377fde",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 222
  },
  "hsl": {
    "h": 214.132,
    "s": 71.674,
    "l": 54.314
  },
  "oklch": {
    "l": 0.5996,
    "c": 0.16151,
    "h": 256.6
  },
  "luminance": 0.21265
}

Semantic roles & 50–950 ramp

primary

#377FDE

secondary

#DCBD95

accent

#A039EE

background

#F8FAFE

surface

#F0F3FD

border

#CBCDD5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #377FDE

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

Preview Lab → · Contrast checker → · Palette generator →