#377DBE#377DBE

#377DBE is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.6% C 0.123 H 249.4°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#377DBE
RGB	rgb(55, 125, 190)
HSL	hsl(209, 55%, 48%)
HSV	hsv(209, 71%, 75%)
CMYK	cmyk(71.1%, 34.2%, 0%, 25.5%)
CIE-LAB	lab(50.91, -0.23, -40.41)
CIE-LCH	lch(50.91, 40.41, 269.67°)
OKLab	oklab(57.58% -0.0432 -0.1147)
OKLCH	oklch(57.58% 0.123 249.4)
XYZ	xyz(18.1999, 19.1952, 51.4511)
Luminance	0.1920 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DBE #BE7837

analogous

#37BEBB #377DBE #3739BE

triadic

#377DBE #BE377D #7DBE37

tetradic

#377DBE #BB37BE #BE7837 #39BE37

square

#377DBE #BB37BE #BE7837 #39BE37

split-complementary

#377DBE #BE3739 #BEBB37

monochromatic

#1C3F5F #295E8F #377DBE #619BD1 #90B9DF

Accessibility & contrast

On white

4.34

#377DBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#377DBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DBE

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DBE	#FFFFFF	#000000	##000000
##377DBE	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6080C1

Deuteranopia (green-blind)

#4C73BD

Tritanopia (blue-blind)

#008C95

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #377dbe;
/* rgb */ color: rgb(55, 125, 190);
/* oklch */ color: oklch(57.6% 0.123 249.4);

Tailwind

colors: {
  custom: {
    50: '#7ea2d2',
    500: '#377dbe',
    950: '#000000',
  },
}

SCSS

$custom: #377dbe;
$custom-light: #7ea2d2;
$custom-dark: #000000;

JSON

{
  "hex": "#377dbe",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 190
  },
  "hsl": {
    "h": 208.889,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57582,
    "c": 0.12257,
    "h": 249.4
  },
  "luminance": 0.19197
}

Semantic roles & 50–950 ramp

primary

#377DBE

secondary

#CAA787

accent

#9149DE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #377DBE

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

Preview Lab → · Contrast checker → · Palette generator →