#2640AE#2640AE

#2640AE is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.178 H 267.6°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#2640AE
RGB	rgb(38, 64, 174)
HSL	hsl(229, 64%, 42%)
HSV	hsv(229, 78%, 68%)
CMYK	cmyk(78.2%, 63.2%, 0%, 31.8%)
CIE-LAB	lab(32.11, 30.78, -61.33)
CIE-LCH	lch(32.11, 68.62, 296.65°)
OKLab	oklab(42.67% -0.0074 -0.1774)
OKLCH	oklch(42.67% 0.178 267.6)
XYZ	xyz(10.2700, 7.1337, 40.8719)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2640AE #AE9426

analogous

#2684AE #2640AE #5026AE

triadic

#2640AE #AE2640 #40AE26

tetradic

#2640AE #AE2684 #AE9426 #26AE50

square

#2640AE #AE2684 #AE9426 #26AE50

split-complementary

#2640AE #AE5026 #84AE26

monochromatic

#101B4A #1B2E7C #2640AE #3D5AD5 #6F84E0

Accessibility & contrast

On white

8.65

#2640AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2640AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2640AE

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2640AE	#FFFFFF	#000000	##FFFFFF
##2640AE	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B2

Deuteranopia (green-blind)

#0045AC

Tritanopia (blue-blind)

#005D71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2640ae;
/* rgb */ color: rgb(38, 64, 174);
/* oklch */ color: oklch(42.7% 0.178 267.6);

Tailwind

colors: {
  custom: {
    50: '#7774c7',
    500: '#2640ae',
    950: '#000000',
  },
}

SCSS

$custom: #2640ae;
$custom-light: #7774c7;
$custom-dark: #000000;

JSON

{
  "hex": "#2640ae",
  "rgb": {
    "r": 38,
    "g": 64,
    "b": 174
  },
  "hsl": {
    "h": 228.529,
    "s": 64.151,
    "l": 41.569
  },
  "oklch": {
    "l": 0.42665,
    "c": 0.17753,
    "h": 267.6
  },
  "luminance": 0.07135
}

Semantic roles & 50–950 ramp

primary

#2640AE

secondary

#C6B46A

accent

#C741E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2640AE

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

Preview Lab → · Contrast checker → · Palette generator →