#275DB0#275DB0

#275DB0 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 48.9% C 0.144 H 259.0°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#275DB0
RGB	rgb(39, 93, 176)
HSL	hsl(216, 64%, 42%)
HSV	hsv(216, 78%, 69%)
CMYK	cmyk(77.8%, 47.2%, 0%, 31%)
CIE-LAB	lab(40.23, 12.45, -49.32)
CIE-LCH	lch(40.23, 50.87, 284.17°)
OKLab	oklab(48.86% -0.0275 -0.1416)
OKLCH	oklch(48.86% 0.144 259)
XYZ	xyz(12.5847, 11.3932, 42.6017)
Luminance	0.1139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275DB0 #B07A27

analogous

#27A2B0 #275DB0 #3527B0

triadic

#275DB0 #B0275D #5DB027

tetradic

#275DB0 #B027A2 #B07A27 #27B035

square

#275DB0 #B027A2 #B07A27 #27B035

split-complementary

#275DB0 #B03527 #A2B027

monochromatic

#11284C #1C437E #275DB0 #407AD5 #729DE0

Accessibility & contrast

On white

6.40

#275DB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#275DB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275DB0

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275DB0	#FFFFFF	#000000	##FFFFFF
##275DB0	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3065B3

Deuteranopia (green-blind)

#0959AE

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275db0;
/* rgb */ color: rgb(39, 93, 176);
/* oklch */ color: oklch(48.9% 0.144 259.0);

Tailwind

colors: {
  custom: {
    50: '#768ac8',
    500: '#275db0',
    950: '#000000',
  },
}

SCSS

$custom: #275db0;
$custom-light: #768ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#275db0",
  "rgb": {
    "r": 39,
    "g": 93,
    "b": 176
  },
  "hsl": {
    "h": 216.35,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.48863,
    "c": 0.14426,
    "h": 259
  },
  "luminance": 0.11395
}

Semantic roles & 50–950 ramp

primary

#275DB0

secondary

#C7A36C

accent

#A541E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275DB0

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

Preview Lab → · Contrast checker → · Palette generator →