#2530B1#2530B1

#2530B1 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.2% C 0.200 H 269.9°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#2530B1
RGB	rgb(37, 48, 177)
HSL	hsl(235, 65%, 42%)
HSV	hsv(235, 79%, 69%)
CMYK	cmyk(79.1%, 72.9%, 0%, 30.6%)
CIE-LAB	lab(28.59, 41.88, -68.90)
CIE-LCH	lch(28.59, 80.63, 301.29°)
OKLab	oklab(40.18% -0.0004 -0.1996)
OKLCH	oklch(40.18% 0.2 269.9)
XYZ	xyz(9.7530, 5.6804, 42.1689)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.69

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2530B1 #B1A625

analogous

#2576B1 #2530B1 #6025B1

triadic

#2530B1 #B12530 #30B125

tetradic

#2530B1 #B12576 #B1A625 #25B160

square

#2530B1 #B12576 #B1A625 #25B160

split-complementary

#2530B1 #B16025 #76B125

monochromatic

#10154C #1A227E #2530B1 #3D49D6 #6F78E1

Accessibility & contrast

On white

9.83

#2530B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#2530B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2530B1

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2530B1	#FFFFFF	#000000	##FFFFFF
##2530B1	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB5

Deuteranopia (green-blind)

#003CAF

Tritanopia (blue-blind)

#00556D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2530b1;
/* rgb */ color: rgb(37, 48, 177);
/* oklch */ color: oklch(40.2% 0.200 269.9);

Tailwind

colors: {
  custom: {
    50: '#7969ca',
    500: '#2530b1',
    950: '#000000',
  },
}

SCSS

$custom: #2530b1;
$custom-light: #7969ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2530b1",
  "rgb": {
    "r": 37,
    "g": 48,
    "b": 177
  },
  "hsl": {
    "h": 235.286,
    "s": 65.421,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40179,
    "c": 0.19957,
    "h": 269.9
  },
  "luminance": 0.05682
}

Semantic roles & 50–950 ramp

primary

#2530B1

secondary

#C8C06A

accent

#DB3FE8

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2530B1

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

Preview Lab → · Contrast checker → · Palette generator →