#28397A#28397A

#28397A is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.9% C 0.112 H 269.2°. Best body text is #FFFFFF at 10.73:1 contrast (WCAG AA passes).

Color values

HEX	#28397A
RGB	rgb(40, 57, 122)
HSL	hsl(228, 51%, 32%)
HSV	hsv(228, 67%, 48%)
CMYK	cmyk(67.2%, 53.3%, 0%, 52.2%)
CIE-LAB	lab(26.10, 15.93, -39.21)
CIE-LCH	lch(26.10, 42.33, 292.11°)
OKLab	oklab(36.89% -0.0015 -0.1125)
OKLCH	oklch(36.89% 0.112 269.2)
XYZ	xyz(5.8499, 4.7820, 19.0233)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28397A #7A6928

analogous

#28627A #28397A #40287A

triadic

#28397A #7A2839 #397A28

tetradic

#28397A #7A2862 #7A6928 #287A40

square

#28397A #7A2862 #7A6928 #287A40

split-complementary

#28397A #7A4028 #627A28

monochromatic

#0A0E1E #19234C #28397A #374FA8 #556DC7

Accessibility & contrast

On white

10.73

#28397A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#28397A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28397A

10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28397A	#FFFFFF	#000000	##FFFFFF
##28397A	1.00	10.73	1.96	10.73
#FFFFFF	10.73	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13427C

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #28397a;
/* rgb */ color: rgb(40, 57, 122);
/* oklch */ color: oklch(36.9% 0.112 269.2);

Tailwind

colors: {
  custom: {
    50: '#6c6fa1',
    500: '#28397a',
    950: '#000000',
  },
}

SCSS

$custom: #28397a;
$custom-light: #6c6fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#28397a",
  "rgb": {
    "r": 40,
    "g": 57,
    "b": 122
  },
  "hsl": {
    "h": 227.561,
    "s": 50.617,
    "l": 31.765
  },
  "oklch": {
    "l": 0.36887,
    "c": 0.11248,
    "h": 269.2
  },
  "luminance": 0.04783
}

Semantic roles & 50–950 ramp

primary

#28397A

secondary

#AC9952

accent

#BD4EDA

background

#F6F6F9

surface

#ECECF2

border

#C7C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #28397A

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

Preview Lab → · Contrast checker → · Palette generator →