#283EA6#283EA6

#283EA6 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.169 H 268.6°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#283EA6
RGB	rgb(40, 62, 166)
HSL	hsl(230, 61%, 40%)
HSV	hsv(230, 76%, 65%)
CMYK	cmyk(75.9%, 62.7%, 0%, 34.9%)
CIE-LAB	lab(30.99, 29.31, -58.36)
CIE-LCH	lch(30.99, 65.30, 296.67°)
OKLab	oklab(41.65% -0.0042 -0.1687)
OKLCH	oklch(41.65% 0.169 268.6)
XYZ	xyz(9.4783, 6.6485, 36.8528)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283EA6 #A69028

analogous

#287DA6 #283EA6 #5128A6

triadic

#283EA6 #A6283E #3EA628

tetradic

#283EA6 #A6287D #A69028 #28A651

square

#283EA6 #A6287D #A69028 #28A651

split-complementary

#283EA6 #A65128 #7DA628

monochromatic

#101943 #1C2C75 #283EA6 #3B55D0 #6D80DC

Accessibility & contrast

On white

9.01

#283EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#283EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283EA6

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283EA6	#FFFFFF	#000000	##FFFFFF
##283EA6	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA9

Deuteranopia (green-blind)

#0043A4

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #283ea6;
/* rgb */ color: rgb(40, 62, 166);
/* oklch */ color: oklch(41.6% 0.169 268.6);

Tailwind

colors: {
  custom: {
    50: '#7673c1',
    500: '#283ea6',
    950: '#000000',
  },
}

SCSS

$custom: #283ea6;
$custom-light: #7673c1;
$custom-dark: #000000;

JSON

{
  "hex": "#283ea6",
  "rgb": {
    "r": 40,
    "g": 62,
    "b": 166
  },
  "hsl": {
    "h": 229.524,
    "s": 61.165,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41649,
    "c": 0.16871,
    "h": 268.6
  },
  "luminance": 0.0665
}

Semantic roles & 50–950 ramp

primary

#283EA6

secondary

#C2B267

accent

#C844E4

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #283EA6

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

Preview Lab → · Contrast checker → · Palette generator →