#253BA5#253BA5

#253BA5 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.9% C 0.172 H 268.3°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#253BA5
RGB	rgb(37, 59, 165)
HSL	hsl(230, 63%, 40%)
HSV	hsv(230, 78%, 65%)
CMYK	cmyk(77.6%, 64.2%, 0%, 35.3%)
CIE-LAB	lab(30.00, 30.59, -59.38)
CIE-LCH	lch(30.00, 66.80, 297.25°)
OKLab	oklab(40.85% -0.005 -0.1718)
OKLCH	oklch(40.85% 0.172 268.3)
XYZ	xyz(9.1161, 6.2368, 36.3134)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#253BA5 #A58F25

analogous

#257BA5 #253BA5 #4F25A5

triadic

#253BA5 #A5253B #3BA525

tetradic

#253BA5 #A5257B #A58F25 #25A54F

square

#253BA5 #A5257B #A58F25 #25A54F

split-complementary

#253BA5 #A54F25 #7BA525

monochromatic

#0F1741 #1A2973 #253BA5 #3550D2 #677CDD

Accessibility & contrast

On white

9.34

#253BA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#253BA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #253BA5

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##253BA5	#FFFFFF	#000000	##FFFFFF
##253BA5	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA8

Deuteranopia (green-blind)

#0041A3

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #253ba5;
/* rgb */ color: rgb(37, 59, 165);
/* oklch */ color: oklch(40.9% 0.172 268.3);

Tailwind

colors: {
  custom: {
    50: '#7570c1',
    500: '#253ba5',
    950: '#000000',
  },
}

SCSS

$custom: #253ba5;
$custom-light: #7570c1;
$custom-dark: #000000;

JSON

{
  "hex": "#253ba5",
  "rgb": {
    "r": 37,
    "g": 59,
    "b": 165
  },
  "hsl": {
    "h": 229.688,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40853,
    "c": 0.17182,
    "h": 268.3
  },
  "luminance": 0.06238
}

Semantic roles & 50–950 ramp

primary

#253BA5

secondary

#C3B263

accent

#CA41E6

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #253BA5

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

Preview Lab → · Contrast checker → · Palette generator →