#283C97#283C97

#283C97 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.9% C 0.151 H 269.0°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#283C97
RGB	rgb(40, 60, 151)
HSL	hsl(229, 58%, 37%)
HSV	hsv(229, 74%, 59%)
CMYK	cmyk(73.5%, 60.3%, 0%, 40.8%)
CIE-LAB	lab(29.20, 24.97, -52.19)
CIE-LCH	lch(29.20, 57.86, 295.57°)
OKLab	oklab(39.92% -0.0027 -0.1506)
OKLCH	oklch(39.92% 0.151 269)
XYZ	xyz(8.0749, 5.9164, 29.9886)
Luminance	0.0592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C97 #978328

analogous

#287497 #283C97 #4B2897

triadic

#283C97 #97283C #3C9728

tetradic

#283C97 #972874 #978328 #28974B

square

#283C97 #972874 #978328 #28974B

split-complementary

#283C97 #974B28 #749728

monochromatic

#0E1636 #1B2967 #283C97 #354FC7 #6478D6

Accessibility & contrast

On white

9.62

#283C97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#283C97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C97

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C97	#FFFFFF	#000000	##FFFFFF
##283C97	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9A

Deuteranopia (green-blind)

#004095

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #283c97;
/* rgb */ color: rgb(40, 60, 151);
/* oklch */ color: oklch(39.9% 0.151 269.0);

Tailwind

colors: {
  custom: {
    50: '#7271b6',
    500: '#283c97',
    950: '#000000',
  },
}

SCSS

$custom: #283c97;
$custom-light: #7271b6;
$custom-dark: #000000;

JSON

{
  "hex": "#283c97",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 151
  },
  "hsl": {
    "h": 229.189,
    "s": 58.115,
    "l": 37.451
  },
  "oklch": {
    "l": 0.39925,
    "c": 0.15062,
    "h": 269
  },
  "luminance": 0.05917
}

Semantic roles & 50–950 ramp

primary

#283C97

secondary

#BCAB5F

accent

#C546E1

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283C97

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

Preview Lab → · Contrast checker → · Palette generator →