#253CBC#253CBC

#253CBC is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.2% C 0.201 H 268.1°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#253CBC
RGB	rgb(37, 60, 188)
HSL	hsl(231, 67%, 44%)
HSV	hsv(231, 80%, 74%)
CMYK	cmyk(80.3%, 68.1%, 0%, 26.3%)
CIE-LAB	lab(32.38, 38.43, -69.19)
CIE-LCH	lch(32.38, 79.14, 299.05°)
OKLab	oklab(43.24% -0.0068 -0.2004)
OKLCH	oklch(43.24% 0.201 268.1)
XYZ	xyz(11.4528, 7.2545, 48.3639)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253CBC #BCA525

analogous

#2588BC #253CBC #5A25BC

triadic

#253CBC #BC253C #3CBC25

tetradic

#253CBC #BC2588 #BCA525 #25BC5A

square

#253CBC #BC2588 #BCA525 #25BC5A

split-complementary

#253CBC #BC5A25 #88BC25

monochromatic

#111B56 #1B2C89 #253CBC #445BDA #7788E4

Accessibility & contrast

On white

8.57

#253CBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#253CBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253CBC

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253CBC	#FFFFFF	#000000	##FFFFFF
##253CBC	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0045BA

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #253cbc;
/* rgb */ color: rgb(37, 60, 188);
/* oklch */ color: oklch(43.2% 0.201 268.1);

Tailwind

colors: {
  custom: {
    50: '#7a72d1',
    500: '#253cbc',
    950: '#000000',
  },
}

SCSS

$custom: #253cbc;
$custom-light: #7a72d1;
$custom-dark: #000000;

JSON

{
  "hex": "#253cbc",
  "rgb": {
    "r": 37,
    "g": 60,
    "b": 188
  },
  "hsl": {
    "h": 230.861,
    "s": 67.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43244,
    "c": 0.20052,
    "h": 268.1
  },
  "luminance": 0.07256
}

Semantic roles & 50–950 ramp

primary

#253CBC

secondary

#CCBE71

accent

#D03EEA

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #253CBC

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

Preview Lab → · Contrast checker → · Palette generator →