#4277D9#4277D9

#4277D9 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.3% C 0.161 H 261.5°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4277D9
RGB	rgb(66, 119, 217)
HSL	hsl(219, 67%, 55%)
HSV	hsv(219, 70%, 85%)
CMYK	cmyk(69.6%, 45.2%, 0%, 14.9%)
CIE-LAB	lab(51.11, 14.76, -55.46)
CIE-LCH	lch(51.11, 57.39, 284.90°)
OKLab	oklab(58.33% -0.0238 -0.1588)
OKLCH	oklch(58.33% 0.161 261.5)
XYZ	xyz(21.3635, 19.3594, 68.2430)
Luminance	0.1936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277D9 #D9A442

analogous

#42C3D9 #4277D9 #5842D9

triadic

#4277D9 #D94277 #77D942

tetradic

#4277D9 #D942C3 #D9A442 #42D958

square

#4277D9 #D942C3 #D9A442 #42D958

split-complementary

#4277D9 #D95842 #C3D942

monochromatic

#1B4086 #2559B9 #4277D9 #759CE3 #A8C0ED

Accessibility & contrast

On white

4.31

#4277D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#4277D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277D9

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277D9	#FFFFFF	#000000	##000000
##4277D9	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4581DD

Deuteranopia (green-blind)

#2773D7

Tritanopia (blue-blind)

#008E9D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4277d9;
/* rgb */ color: rgb(66, 119, 217);
/* oklch */ color: oklch(58.3% 0.161 261.5);

Tailwind

colors: {
  custom: {
    50: '#879de5',
    500: '#4277d9',
    950: '#000000',
  },
}

SCSS

$custom: #4277d9;
$custom-light: #879de5;
$custom-dark: #000000;

JSON

{
  "hex": "#4277d9",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 217
  },
  "hsl": {
    "h": 218.94,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.58328,
    "c": 0.16055,
    "h": 261.5
  },
  "luminance": 0.19362
}

Semantic roles & 50–950 ramp

primary

#4277D9

secondary

#DBC59C

accent

#AD3EE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4277D9

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

Preview Lab → · Contrast checker → · Palette generator →