#377FCA#377FCA

#377FCA is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.7% C 0.136 H 252.0°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#377FCA
RGB	rgb(55, 127, 202)
HSL	hsl(211, 58%, 50%)
HSV	hsv(211, 73%, 79%)
CMYK	cmyk(72.8%, 37.1%, 0%, 20.8%)
CIE-LAB	lab(52.12, 2.88, -45.35)
CIE-LCH	lch(52.12, 45.44, 273.63°)
OKLab	oklab(58.73% -0.0419 -0.1291)
OKLCH	oklch(58.73% 0.136 252)
XYZ	xyz(19.8216, 20.2530, 58.7302)
Luminance	0.2026 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FCA #CA8237

analogous

#37C9CA #377FCA #3837CA

triadic

#377FCA #CA377F #7FCA37

tetradic

#377FCA #CA37C9 #CA8237 #37CA38

square

#377FCA #CA37C9 #CA8237 #37CA38

split-complementary

#377FCA #CA3837 #C9CA37

monochromatic

#1C436A #29619B #377FCA #679ED7 #98BDE4

Accessibility & contrast

On white

4.16

#377FCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#377FCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FCA

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FCA	#FFFFFF	#000000	##000000
##377FCA	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C84CD

Deuteranopia (green-blind)

#4676C9

Tritanopia (blue-blind)

#00919B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #377fca;
/* rgb */ color: rgb(55, 127, 202);
/* oklch */ color: oklch(58.7% 0.136 252.0);

Tailwind

colors: {
  custom: {
    50: '#80a3da',
    500: '#377fca',
    950: '#000000',
  },
}

SCSS

$custom: #377fca;
$custom-light: #80a3da;
$custom-dark: #000000;

JSON

{
  "hex": "#377fca",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 202
  },
  "hsl": {
    "h": 210.612,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.58732,
    "c": 0.13577,
    "h": 252
  },
  "luminance": 0.20255
}

Semantic roles & 50–950 ramp

primary

#377FCA

secondary

#CFAF8E

accent

#9546E1

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #377FCA

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

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