#275EB4#275EB4

#275EB4 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.4% C 0.148 H 259.2°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#275EB4
RGB	rgb(39, 94, 180)
HSL	hsl(217, 64%, 43%)
HSV	hsv(217, 78%, 71%)
CMYK	cmyk(78.3%, 47.8%, 0%, 29.4%)
CIE-LAB	lab(40.78, 13.35, -50.79)
CIE-LCH	lch(40.78, 52.51, 284.72°)
OKLab	oklab(49.37% -0.0277 -0.1459)
OKLCH	oklch(49.37% 0.149 259.2)
XYZ	xyz(13.0746, 11.7305, 44.7463)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275EB4 #B47D27

analogous

#27A4B4 #275EB4 #3727B4

triadic

#275EB4 #B4275E #5EB427

tetradic

#275EB4 #B427A4 #B47D27 #27B437

square

#275EB4 #B427A4 #B47D27 #27B437

split-complementary

#275EB4 #B43727 #A4B427

monochromatic

#11294F #1C4482 #275EB4 #427CD6 #749FE1

Accessibility & contrast

On white

6.28

#275EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#275EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275EB4

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275EB4	#FFFFFF	#000000	##FFFFFF
##275EB4	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E67B7

Deuteranopia (green-blind)

#005AB2

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #275eb4;
/* rgb */ color: rgb(39, 94, 180);
/* oklch */ color: oklch(49.4% 0.148 259.2);

Tailwind

colors: {
  custom: {
    50: '#778bcb',
    500: '#275eb4',
    950: '#000000',
  },
}

SCSS

$custom: #275eb4;
$custom-light: #778bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#275eb4",
  "rgb": {
    "r": 39,
    "g": 94,
    "b": 180
  },
  "hsl": {
    "h": 216.596,
    "s": 64.384,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4937,
    "c": 0.1485,
    "h": 259.2
  },
  "luminance": 0.11732
}

Semantic roles & 50–950 ramp

primary

#275EB4

secondary

#C8A56F

accent

#A640E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275EB4

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

Preview Lab → · Contrast checker → · Palette generator →