#28177F#28177F

#28177F is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.161 H 279.1°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#28177F
RGB	rgb(40, 23, 127)
HSL	hsl(250, 69%, 29%)
HSV	hsv(250, 82%, 50%)
CMYK	cmyk(68.5%, 81.9%, 0%, 50.2%)
CIE-LAB	lab(18.35, 39.44, -55.06)
CIE-LCH	lch(18.35, 67.73, 305.61°)
OKLab	oklab(31.37% 0.0255 -0.159)
OKLCH	oklch(31.37% 0.161 279.1)
XYZ	xyz(5.0110, 2.5958, 20.3115)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28177F #6E7F17

analogous

#173A7F #28177F #5C177F

triadic

#28177F #7F2817 #177F28

tetradic

#28177F #7F173A #6E7F17 #177F5C

square

#28177F #7F173A #6E7F17 #177F5C

split-complementary

#28177F #7F5C17 #3A7F17

monochromatic

#08051A #180E4B #28177F #3820B3 #5136DB

Accessibility & contrast

On white

13.82

#28177F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#28177F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28177F

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28177F	#FFFFFF	#000000	##FFFFFF
##28177F	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00297D

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #28177f;
/* rgb */ color: rgb(40, 23, 127);
/* oklch */ color: oklch(31.4% 0.161 279.1);

Tailwind

colors: {
  custom: {
    50: '#7057a5',
    500: '#28177f',
    950: '#000000',
  },
}

SCSS

$custom: #28177f;
$custom-light: #7057a5;
$custom-dark: #000000;

JSON

{
  "hex": "#28177f",
  "rgb": {
    "r": 40,
    "g": 23,
    "b": 127
  },
  "hsl": {
    "h": 249.808,
    "s": 69.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31369,
    "c": 0.16103,
    "h": 279.1
  },
  "luminance": 0.02596
}

Semantic roles & 50–950 ramp

primary

#28177F

secondary

#A0B43E

accent

#EC3CCF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09030F

muted

#7B787F

Preview Lab

Preview with #28177F

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

Preview Lab → · Contrast checker → · Palette generator →