#284FA7#284FA7

#284FA7 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.2% C 0.149 H 263.6°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#284FA7
RGB	rgb(40, 79, 167)
HSL	hsl(222, 61%, 41%)
HSV	hsv(222, 76%, 65%)
CMYK	cmyk(76%, 52.7%, 0%, 34.5%)
CIE-LAB	lab(35.66, 18.34, -51.37)
CIE-LCH	lch(35.66, 54.54, 289.64°)
OKLab	oklab(45.18% -0.0167 -0.1479)
OKLCH	oklch(45.18% 0.149 263.6)
XYZ	xyz(10.6436, 8.8319, 37.6955)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284FA7 #A78028

analogous

#288EA7 #284FA7 #4028A7

triadic

#284FA7 #A7284F #4FA728

tetradic

#284FA7 #A7288E #A78028 #28A740

square

#284FA7 #A7288E #A78028 #28A740

split-complementary

#284FA7 #A74028 #8EA728

monochromatic

#102044 #1C3876 #284FA7 #3C69D0 #6D8FDC

Accessibility & contrast

On white

7.59

#284FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#284FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284FA7

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284FA7	#FFFFFF	#000000	##FFFFFF
##284FA7	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#135AAA

Deuteranopia (green-blind)

#004EA5

Tritanopia (blue-blind)

#006473

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #284fa7;
/* rgb */ color: rgb(40, 79, 167);
/* oklch */ color: oklch(45.2% 0.149 263.6);

Tailwind

colors: {
  custom: {
    50: '#757fc2',
    500: '#284fa7',
    950: '#000000',
  },
}

SCSS

$custom: #284fa7;
$custom-light: #757fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#284fa7",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 167
  },
  "hsl": {
    "h": 221.575,
    "s": 61.353,
    "l": 40.588
  },
  "oklch": {
    "l": 0.45175,
    "c": 0.1488,
    "h": 263.6
  },
  "luminance": 0.08833
}

Semantic roles & 50–950 ramp

primary

#284FA7

secondary

#C3A768

accent

#B343E4

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #284FA7

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

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