#43639B#43639B

#43639B is a mid, moderate blue. Relative luminance 0.125; OKLCH L 50.1% C 0.097 H 261.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#43639B
RGB	rgb(67, 99, 155)
HSL	hsl(218, 40%, 44%)
HSV	hsv(218, 57%, 61%)
CMYK	cmyk(56.8%, 36.1%, 0%, 39.2%)
CIE-LAB	lab(41.97, 5.67, -34.04)
CIE-LCH	lch(41.97, 34.51, 279.46°)
OKLab	oklab(50.14% -0.0153 -0.0962)
OKLCH	oklch(50.14% 0.097 261)
XYZ	xyz(12.6909, 12.4825, 32.7446)
Luminance	0.1248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#43639B #9B7B43

analogous

#438F9B #43639B #4F439B

triadic

#43639B #9B4363 #639B43

tetradic

#43639B #9B438F #9B7B43 #439B4F

square

#43639B #9B438F #9B7B43 #439B4F

split-complementary

#43639B #9B4F43 #8F9B43

monochromatic

#1E2C46 #314870 #43639B #6181BB #8BA3CD

Accessibility & contrast

On white

6.01

#43639B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#43639B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #43639B

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43639B	#FFFFFF	#000000	##FFFFFF
##43639B	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C689D

Deuteranopia (green-blind)

#415F9A

Tritanopia (blue-blind)

#086F77

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #43639b;
/* rgb */ color: rgb(67, 99, 155);
/* oklch */ color: oklch(50.1% 0.097 261.0);

Tailwind

colors: {
  custom: {
    50: '#7e8fb9',
    500: '#43639b',
    950: '#000000',
  },
}

SCSS

$custom: #43639b;
$custom-light: #7e8fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#43639b",
  "rgb": {
    "r": 67,
    "g": 99,
    "b": 155
  },
  "hsl": {
    "h": 218.182,
    "s": 39.64,
    "l": 43.529
  },
  "oklch": {
    "l": 0.50144,
    "c": 0.09743,
    "h": 261
  },
  "luminance": 0.12484
}

Semantic roles & 50–950 ramp

primary

#43639B

secondary

#B8A482

accent

#A458D0

background

#F8F8FB

surface

#EFF0F6

border

#CACBD0

text

#0A0C11

muted

#7C7D80

Preview Lab

Preview with #43639B

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

Preview Lab → · Contrast checker → · Palette generator →