#646EA2#646EA2

#646EA2 is a mid, moderate blue. Relative luminance 0.165; OKLCH L 55.2% C 0.082 H 275.1°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#646EA2
RGB	rgb(100, 110, 162)
HSL	hsl(230, 25%, 51%)
HSV	hsv(230, 38%, 64%)
CMYK	cmyk(38.3%, 32.1%, 0%, 36.5%)
CIE-LAB	lab(47.58, 9.57, -29.23)
CIE-LCH	lch(47.58, 30.76, 288.13°)
OKLab	oklab(55.16% 0.0072 -0.0816)
OKLCH	oklch(55.16% 0.082 275.1)
XYZ	xyz(17.3511, 16.4691, 36.4400)
Luminance	0.1647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EA2 #A29864

analogous

#648DA2 #646EA2 #7964A2

triadic

#646EA2 #A2646E #6EA264

tetradic

#646EA2 #A2648D #A29864 #64A279

square

#646EA2 #A2648D #A29864 #64A279

split-complementary

#646EA2 #A27964 #8DA264

monochromatic

#343A57 #4B537E #646EA2 #8A92B9 #B1B6D0

Accessibility & contrast

On white

4.89

#646EA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#646EA2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646EA2

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EA2	#FFFFFF	#000000	##FFFFFF
##646EA2	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D74A4

Deuteranopia (green-blind)

#586FA1

Tritanopia (blue-blind)

#527881

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #646ea2;
/* rgb */ color: rgb(100, 110, 162);
/* oklch */ color: oklch(55.2% 0.082 275.1);

Tailwind

colors: {
  custom: {
    50: '#9297bd',
    500: '#646ea2',
    950: '#000000',
  },
}

SCSS

$custom: #646ea2;
$custom-light: #9297bd;
$custom-dark: #000000;

JSON

{
  "hex": "#646ea2",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 162
  },
  "hsl": {
    "h": 230.323,
    "s": 25,
    "l": 51.373
  },
  "oklch": {
    "l": 0.55162,
    "c": 0.08194,
    "h": 275.1
  },
  "luminance": 0.1647
}

Semantic roles & 50–950 ramp

primary

#646EA2

secondary

#BFBAA3

accent

#B366C1

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0D12

muted

#7E7E81

Preview Lab

Preview with #646EA2

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

Preview Lab → · Contrast checker → · Palette generator →