#285CA5#285CA5

#285CA5 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 47.9% C 0.130 H 257.5°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#285CA5
RGB	rgb(40, 92, 165)
HSL	hsl(215, 61%, 40%)
HSV	hsv(215, 76%, 65%)
CMYK	cmyk(75.8%, 44.2%, 0%, 35.3%)
CIE-LAB	lab(39.28, 8.97, -44.35)
CIE-LCH	lch(39.28, 45.25, 281.44°)
OKLab	oklab(47.91% -0.0281 -0.127)
OKLCH	oklch(47.91% 0.13 257.5)
XYZ	xyz(11.4913, 10.8207, 37.0730)
Luminance	0.1082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285CA5 #A57128

analogous

#289BA5 #285CA5 #3228A5

triadic

#285CA5 #A5285C #5CA528

tetradic

#285CA5 #A5289B #A57128 #28A532

square

#285CA5 #A5289B #A57128 #28A532

split-complementary

#285CA5 #A53228 #9BA528

monochromatic

#102542 #1C4174 #285CA5 #3B79CF #6C9ADB

Accessibility & contrast

On white

6.64

#285CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#285CA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285CA5

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285CA5	#FFFFFF	#000000	##FFFFFF
##285CA5	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3763A8

Deuteranopia (green-blind)

#2057A4

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #285ca5;
/* rgb */ color: rgb(40, 92, 165);
/* oklch */ color: oklch(47.9% 0.130 257.5);

Tailwind

colors: {
  custom: {
    50: '#7489c0',
    500: '#285ca5',
    950: '#000000',
  },
}

SCSS

$custom: #285ca5;
$custom-light: #7489c0;
$custom-dark: #000000;

JSON

{
  "hex": "#285ca5",
  "rgb": {
    "r": 40,
    "g": 92,
    "b": 165
  },
  "hsl": {
    "h": 215.04,
    "s": 60.976,
    "l": 40.196
  },
  "oklch": {
    "l": 0.47908,
    "c": 0.13005,
    "h": 257.5
  },
  "luminance": 0.10822
}

Semantic roles & 50–950 ramp

primary

#285CA5

secondary

#C29C67

accent

#A144E4

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #285CA5

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

Preview Lab → · Contrast checker → · Palette generator →