#4077BB#4077BB

#4077BB is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.4% C 0.121 H 254.8°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#4077BB
RGB	rgb(64, 119, 187)
HSL	hsl(213, 49%, 49%)
HSV	hsv(213, 66%, 73%)
CMYK	cmyk(65.8%, 36.4%, 0%, 26.7%)
CIE-LAB	lab(49.34, 3.78, -41.16)
CIE-LCH	lch(49.34, 41.33, 275.25°)
OKLab	oklab(56.39% -0.0317 -0.1168)
OKLCH	oklch(56.39% 0.121 254.8)
XYZ	xyz(17.6776, 17.8697, 49.5217)
Luminance	0.1787 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4077BB #BB8440

analogous

#40B5BB #4077BB #4740BB

triadic

#4077BB #BB4077 #77BB40

tetradic

#4077BB #BB40B5 #BB8440 #40BB47

square

#4077BB #BB40B5 #BB8440 #40BB47

split-complementary

#4077BB #BB4740 #B5BB40

monochromatic

#213D60 #305A8D #4077BB #6C97CD #99B7DC

Accessibility & contrast

On white

4.59

#4077BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4077BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4077BB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4077BB	#FFFFFF	#000000	##FFFFFF
##4077BB	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597CBE

Deuteranopia (green-blind)

#4870BA

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4077bb;
/* rgb */ color: rgb(64, 119, 187);
/* oklch */ color: oklch(56.4% 0.121 254.8);

Tailwind

colors: {
  custom: {
    50: '#819dd0',
    500: '#4077bb',
    950: '#000000',
  },
}

SCSS

$custom: #4077bb;
$custom-light: #819dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4077bb",
  "rgb": {
    "r": 64,
    "g": 119,
    "b": 187
  },
  "hsl": {
    "h": 213.171,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.56389,
    "c": 0.12105,
    "h": 254.8
  },
  "luminance": 0.17871
}

Semantic roles & 50–950 ramp

primary

#4077BB

secondary

#C8AE8F

accent

#9B4FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4077BB

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

Preview Lab → · Contrast checker → · Palette generator →