#4277D3#4277D3

#4277D3 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 57.9% C 0.152 H 260.6°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4277D3
RGB	rgb(66, 119, 211)
HSL	hsl(218, 62%, 54%)
HSV	hsv(218, 69%, 83%)
CMYK	cmyk(68.7%, 43.6%, 0%, 17.3%)
CIE-LAB	lab(50.75, 12.62, -52.63)
CIE-LCH	lch(50.75, 54.12, 283.48°)
OKLab	oklab(57.94% -0.0249 -0.1505)
OKLCH	oklch(57.94% 0.153 260.6)
XYZ	xyz(20.5973, 19.0529, 64.2075)
Luminance	0.1905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277D3 #D39E42

analogous

#42C0D3 #4277D3 #5642D3

triadic

#4277D3 #D34277 #77D342

tetradic

#4277D3 #D342C0 #D39E42 #42D356

square

#4277D3 #D342C0 #D39E42 #42D356

split-complementary

#4277D3 #D35642 #C0D342

monochromatic

#1D407D #295AAF #4277D3 #749BDF #A5BEEA

Accessibility & contrast

On white

4.36

#4277D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#4277D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277D3

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277D3	#FFFFFF	#000000	##000000
##4277D3	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A80D7

Deuteranopia (green-blind)

#3173D1

Tritanopia (blue-blind)

#008C9B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4277d3;
/* rgb */ color: rgb(66, 119, 211);
/* oklch */ color: oklch(57.9% 0.152 260.6);

Tailwind

colors: {
  custom: {
    50: '#869de1',
    500: '#4277d3',
    950: '#000000',
  },
}

SCSS

$custom: #4277d3;
$custom-light: #869de1;
$custom-dark: #000000;

JSON

{
  "hex": "#4277d3",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 211
  },
  "hsl": {
    "h": 218.069,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.57939,
    "c": 0.1525,
    "h": 260.6
  },
  "luminance": 0.19055
}

Semantic roles & 50–950 ramp

primary

#4277D3

secondary

#D7C19A

accent

#AA42E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4277D3

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

Preview Lab → · Contrast checker → · Palette generator →