#377DDA#377DDA

#377DDA is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 59.3% C 0.159 H 256.7°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#377DDA
RGB	rgb(55, 125, 218)
HSL	hsl(214, 69%, 54%)
HSV	hsv(214, 75%, 85%)
CMYK	cmyk(74.8%, 42.7%, 0%, 14.5%)
CIE-LAB	lab(52.44, 9.93, -53.91)
CIE-LCH	lch(52.44, 54.81, 280.43°)
OKLab	oklab(59.27% -0.0365 -0.1543)
OKLCH	oklch(59.27% 0.159 256.7)
XYZ	xyz(21.5594, 20.5390, 69.1442)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DDA #DA9437

analogous

#37CEDA #377DDA #4237DA

triadic

#377DDA #DA377D #7DDA37

tetradic

#377DDA #DA37CE #DA9437 #37DA42

square

#377DDA #DA37CE #DA9437 #37DA42

split-complementary

#377DDA #DA4237 #CEDA37

monochromatic

#18447F #2160B3 #377DDA #6B9FE4 #9EC0ED

Accessibility & contrast

On white

4.11

#377DDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#377DDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DDA

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DDA	#FFFFFF	#000000	##000000
##377DDA	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F85DE

Deuteranopia (green-blind)

#3176D8

Tritanopia (blue-blind)

#0093A1

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #377dda;
/* rgb */ color: rgb(55, 125, 218);
/* oklch */ color: oklch(59.3% 0.159 256.7);

Tailwind

colors: {
  custom: {
    50: '#83a2e6',
    500: '#377dda',
    950: '#000000',
  },
}

SCSS

$custom: #377dda;
$custom-light: #83a2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#377dda",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 218
  },
  "hsl": {
    "h": 214.233,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.59269,
    "c": 0.15853,
    "h": 256.7
  },
  "luminance": 0.20541
}

Semantic roles & 50–950 ramp

primary

#377DDA

secondary

#D9BB93

accent

#A03CEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #377DDA

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

Preview Lab → · Contrast checker → · Palette generator →