#377ADF#377ADF

#377ADF is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.9% C 0.168 H 258.7°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#377ADF
RGB	rgb(55, 122, 223)
HSL	hsl(216, 72%, 55%)
HSV	hsv(216, 75%, 87%)
CMYK	cmyk(75.3%, 45.3%, 0%, 12.5%)
CIE-LAB	lab(51.90, 13.62, -57.59)
CIE-LCH	lch(51.90, 59.18, 283.30°)
OKLab	oklab(58.95% -0.0331 -0.1651)
OKLCH	oklch(58.95% 0.168 258.7)
XYZ	xyz(21.8495, 20.0565, 72.5175)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377ADF #DF9C37

analogous

#37CEDF #377ADF #4837DF

triadic

#377ADF #DF377A #7ADF37

tetradic

#377ADF #DF37CE #DF9C37 #37DF48

square

#377ADF #DF37CE #DF9C37 #37DF48

split-complementary

#377ADF #DF4837 #CEDF37

monochromatic

#154286 #1E5DBB #377ADF #6C9DE7 #A1C0F0

Accessibility & contrast

On white

4.19

#377ADF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#377ADF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377ADF

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377ADF	#FFFFFF	#000000	##000000
##377ADF	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4584E3

Deuteranopia (green-blind)

#1E75DD

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #377adf;
/* rgb */ color: rgb(55, 122, 223);
/* oklch */ color: oklch(58.9% 0.168 258.7);

Tailwind

colors: {
  custom: {
    50: '#849fe9',
    500: '#377adf',
    950: '#000000',
  },
}

SCSS

$custom: #377adf;
$custom-light: #849fe9;
$custom-dark: #000000;

JSON

{
  "hex": "#377adf",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 223
  },
  "hsl": {
    "h": 216.071,
    "s": 72.414,
    "l": 54.51
  },
  "oklch": {
    "l": 0.58948,
    "c": 0.16844,
    "h": 258.7
  },
  "luminance": 0.20059
}

Semantic roles & 50–950 ramp

primary

#377ADF

secondary

#DCC095

accent

#A639EF

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #377ADF

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

Preview Lab → · Contrast checker → · Palette generator →