#285BB1#285BB1

#285BB1 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.5% C 0.148 H 260.2°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#285BB1
RGB	rgb(40, 91, 177)
HSL	hsl(218, 63%, 43%)
HSV	hsv(218, 77%, 69%)
CMYK	cmyk(77.4%, 48.6%, 0%, 30.6%)
CIE-LAB	lab(39.76, 14.26, -50.68)
CIE-LCH	lch(39.76, 52.65, 285.72°)
OKLab	oklab(48.53% -0.0251 -0.1456)
OKLCH	oklch(48.53% 0.148 260.2)
XYZ	xyz(12.5491, 11.1062, 43.0688)
Luminance	0.1111 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#285BB1 #B17E28

analogous

#28A0B1 #285BB1 #3928B1

triadic

#285BB1 #B1285B #5BB128

tetradic

#285BB1 #B128A0 #B17E28 #28B139

square

#285BB1 #B128A0 #B17E28 #28B139

split-complementary

#285BB1 #B13928 #A0B128

monochromatic

#11284D #1D417F #285BB1 #4278D4 #749CE0

Accessibility & contrast

On white

6.52

#285BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#285BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #285BB1

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##285BB1	#FFFFFF	#000000	##FFFFFF
##285BB1	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A64B4

Deuteranopia (green-blind)

#0058AF

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #285bb1;
/* rgb */ color: rgb(40, 91, 177);
/* oklch */ color: oklch(48.5% 0.148 260.2);

Tailwind

colors: {
  custom: {
    50: '#7688c9',
    500: '#285bb1',
    950: '#000000',
  },
}

SCSS

$custom: #285bb1;
$custom-light: #7688c9;
$custom-dark: #000000;

JSON

{
  "hex": "#285bb1",
  "rgb": {
    "r": 40,
    "g": 91,
    "b": 177
  },
  "hsl": {
    "h": 217.664,
    "s": 63.134,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48527,
    "c": 0.14775,
    "h": 260.2
  },
  "luminance": 0.11108
}

Semantic roles & 50–950 ramp

primary

#285BB1

secondary

#C7A66E

accent

#A942E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #285BB1

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

Preview Lab → · Contrast checker → · Palette generator →