#2539A0#2539A0

#2539A0 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.168 H 268.8°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#2539A0
RGB	rgb(37, 57, 160)
HSL	hsl(230, 62%, 39%)
HSV	hsv(230, 77%, 63%)
CMYK	cmyk(76.9%, 64.4%, 0%, 37.3%)
CIE-LAB	lab(29.05, 30.03, -57.92)
CIE-LCH	lch(29.05, 65.24, 297.40°)
OKLab	oklab(40.01% -0.0036 -0.1675)
OKLCH	oklch(40.01% 0.168 268.8)
XYZ	xyz(8.5690, 5.8567, 33.9297)
Luminance	0.0586 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2539A0 #A08C25

analogous

#2576A0 #2539A0 #4E25A0

triadic

#2539A0 #A02539 #39A025

tetradic

#2539A0 #A02576 #A08C25 #25A04E

square

#2539A0 #A02576 #A08C25 #25A04E

split-complementary

#2539A0 #A04E25 #76A025

monochromatic

#0E163D #1A276E #2539A0 #324CD0 #6478DB

Accessibility & contrast

On white

9.67

#2539A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#2539A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2539A0

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2539A0	#FFFFFF	#000000	##FFFFFF
##2539A0	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA3

Deuteranopia (green-blind)

#003F9E

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #2539a0;
/* rgb */ color: rgb(37, 57, 160);
/* oklch */ color: oklch(40.0% 0.168 268.8);

Tailwind

colors: {
  custom: {
    50: '#736fbd',
    500: '#2539a0',
    950: '#000000',
  },
}

SCSS

$custom: #2539a0;
$custom-light: #736fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#2539a0",
  "rgb": {
    "r": 37,
    "g": 57,
    "b": 160
  },
  "hsl": {
    "h": 230.244,
    "s": 62.437,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40012,
    "c": 0.16754,
    "h": 268.8
  },
  "luminance": 0.05858
}

Semantic roles & 50–950 ramp

primary

#2539A0

secondary

#C1B160

accent

#CB42E6

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2539A0

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

Preview Lab → · Contrast checker → · Palette generator →