#275DB2#275DB2

#275DB2 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.0% C 0.147 H 259.3°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#275DB2
RGB	rgb(39, 93, 178)
HSL	hsl(217, 64%, 43%)
HSV	hsv(217, 78%, 70%)
CMYK	cmyk(78.1%, 47.8%, 0%, 30.2%)
CIE-LAB	lab(40.37, 13.22, -50.29)
CIE-LCH	lch(40.37, 52.00, 284.73°)
OKLab	oklab(49.01% -0.0272 -0.1444)
OKLCH	oklch(49.01% 0.147 259.3)
XYZ	xyz(12.7840, 11.4729, 43.6516)
Luminance	0.1147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275DB2 #B27C27

analogous

#27A2B2 #275DB2 #3727B2

triadic

#275DB2 #B2275D #5DB227

tetradic

#275DB2 #B227A2 #B27C27 #27B237

square

#275DB2 #B227A2 #B27C27 #27B237

split-complementary

#275DB2 #B23727 #A2B227

monochromatic

#11294E #1C4380 #275DB2 #417BD5 #739EE0

Accessibility & contrast

On white

6.37

#275DB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#275DB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275DB2

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275DB2	#FFFFFF	#000000	##FFFFFF
##275DB2	1.00	6.37	3.29	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E66B5

Deuteranopia (green-blind)

#0159B0

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275db2;
/* rgb */ color: rgb(39, 93, 178);
/* oklch */ color: oklch(49.0% 0.147 259.3);

Tailwind

colors: {
  custom: {
    50: '#768aca',
    500: '#275db2',
    950: '#000000',
  },
}

SCSS

$custom: #275db2;
$custom-light: #768aca;
$custom-dark: #000000;

JSON

{
  "hex": "#275db2",
  "rgb": {
    "r": 39,
    "g": 93,
    "b": 178
  },
  "hsl": {
    "h": 216.691,
    "s": 64.055,
    "l": 42.549
  },
  "oklch": {
    "l": 0.49006,
    "c": 0.14698,
    "h": 259.3
  },
  "luminance": 0.11474
}

Semantic roles & 50–950 ramp

primary

#275DB2

secondary

#C8A46D

accent

#A641E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275DB2

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

Preview Lab → · Contrast checker → · Palette generator →