#377EDF#377EDF

#377EDF is a mid, vivid cyan. Relative luminance 0.211; OKLCH L 59.8% C 0.164 H 257.2°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#377EDF
RGB	rgb(55, 126, 223)
HSL	hsl(215, 72%, 55%)
HSV	hsv(215, 75%, 87%)
CMYK	cmyk(75.3%, 43.5%, 0%, 12.5%)
CIE-LAB	lab(53.01, 11.14, -55.80)
CIE-LCH	lch(53.01, 56.91, 281.29°)
OKLab	oklab(59.81% -0.0364 -0.1598)
OKLCH	oklch(59.81% 0.164 257.2)
XYZ	xyz(22.3508, 21.0591, 72.6846)
Luminance	0.2106 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EDF #DF9837

analogous

#37D2DF #377EDF #4437DF

triadic

#377EDF #DF377E #7EDF37

tetradic

#377EDF #DF37D2 #DF9837 #37DF44

square

#377EDF #DF37D2 #DF9837 #37DF44

split-complementary

#377EDF #DF4437 #D2DF37

monochromatic

#154586 #1E60BB #377EDF #6CA0E7 #A1C2F0

Accessibility & contrast

On white

4.03

#377EDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#377EDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EDF

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EDF	#FFFFFF	#000000	##000000
##377EDF	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D87E3

Deuteranopia (green-blind)

#2C77DD

Tritanopia (blue-blind)

#0095A3

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #377edf;
/* rgb */ color: rgb(55, 126, 223);
/* oklch */ color: oklch(59.8% 0.164 257.2);

Tailwind

colors: {
  custom: {
    50: '#84a2e9',
    500: '#377edf',
    950: '#000000',
  },
}

SCSS

$custom: #377edf;
$custom-light: #84a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#377edf",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 223
  },
  "hsl": {
    "h": 214.643,
    "s": 72.414,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59808,
    "c": 0.16391,
    "h": 257.2
  },
  "luminance": 0.21062
}

Semantic roles & 50–950 ramp

primary

#377EDF

secondary

#DCBE95

accent

#A239EF

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0F16

muted

#7D7E84

Preview Lab

Preview with #377EDF

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

Preview Lab → · Contrast checker → · Palette generator →