#377FBD#377FBD

#377FBD is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 58.0% C 0.119 H 247.6°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#377FBD
RGB	rgb(55, 127, 189)
HSL	hsl(208, 55%, 48%)
HSV	hsv(208, 71%, 74%)
CMYK	cmyk(70.9%, 32.8%, 0%, 25.9%)
CIE-LAB	lab(51.45, -1.79, -38.98)
CIE-LCH	lch(51.45, 39.02, 267.38°)
OKLab	oklab(57.99% -0.0454 -0.1105)
OKLCH	oklch(57.99% 0.119 247.6)
XYZ	xyz(18.3468, 19.6631, 50.9627)
Luminance	0.1966 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FBD #BD7537

analogous

#37BDB8 #377FBD #373CBD

triadic

#377FBD #BD377F #7FBD37

tetradic

#377FBD #B837BD #BD7537 #3CBD37

square

#377FBD #B837BD #BD7537 #3CBD37

split-complementary

#377FBD #BD373C #BDB837

monochromatic

#1B3F5E #295F8E #377FBD #609DD1 #90BADF

Accessibility & contrast

On white

4.26

#377FBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#377FBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FBD

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FBD	#FFFFFF	#000000	##000000
##377FBD	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C0

Deuteranopia (green-blind)

#5075BC

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #377fbd;
/* rgb */ color: rgb(55, 127, 189);
/* oklch */ color: oklch(58.0% 0.119 247.6);

Tailwind

colors: {
  custom: {
    50: '#7ea3d1',
    500: '#377fbd',
    950: '#000000',
  },
}

SCSS

$custom: #377fbd;
$custom-light: #7ea3d1;
$custom-dark: #000000;

JSON

{
  "hex": "#377fbd",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 189
  },
  "hsl": {
    "h": 207.761,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.5799,
    "c": 0.11949,
    "h": 247.6
  },
  "luminance": 0.19665
}

Semantic roles & 50–950 ramp

primary

#377FBD

secondary

#C9A586

accent

#8E4ADE

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #377FBD

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

Preview Lab → · Contrast checker → · Palette generator →