#375ECF#375ECF

#375ECF is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.0% C 0.180 H 265.9°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#375ECF
RGB	rgb(55, 94, 207)
HSL	hsl(225, 61%, 51%)
HSV	hsv(225, 73%, 81%)
CMYK	cmyk(73.4%, 54.6%, 0%, 18.8%)
CIE-LAB	lab(43.24, 25.45, -62.46)
CIE-LCH	lch(43.24, 67.45, 292.17°)
OKLab	oklab(52% -0.0129 -0.18)
OKLCH	oklch(52% 0.18 265.9)
XYZ	xyz(16.8368, 13.3208, 60.7032)
Luminance	0.1332 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375ECF #CFA837

analogous

#37AACF #375ECF #5C37CF

triadic

#375ECF #CF375E #5ECF37

tetradic

#375ECF #CF37AA #CFA837 #37CF5C

square

#375ECF #CF37AA #CFA837 #37CF5C

split-complementary

#375ECF #CF5C37 #AACF37

monochromatic

#1B3171 #2746A2 #375ECF #6886DB #9AADE7

Accessibility & contrast

On white

5.73

#375ECF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#375ECF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375ECF

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375ECF	#FFFFFF	#000000	##FFFFFF
##375ECF	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD3

Deuteranopia (green-blind)

#005FCD

Tritanopia (blue-blind)

#007A8D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #375ecf;
/* rgb */ color: rgb(55, 94, 207);
/* oklch */ color: oklch(52.0% 0.180 265.9);

Tailwind

colors: {
  custom: {
    50: '#828bde',
    500: '#375ecf',
    950: '#000000',
  },
}

SCSS

$custom: #375ecf;
$custom-light: #828bde;
$custom-dark: #000000;

JSON

{
  "hex": "#375ecf",
  "rgb": {
    "r": 55,
    "g": 94,
    "b": 207
  },
  "hsl": {
    "h": 224.605,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.52,
    "c": 0.18044,
    "h": 265.9
  },
  "luminance": 0.13323
}

Semantic roles & 50–950 ramp

primary

#375ECF

secondary

#D2C18F

accent

#BB43E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #375ECF

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

Preview Lab → · Contrast checker → · Palette generator →