#275EB3#275EB3

#275EB3 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.3% C 0.147 H 259.1°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#275EB3
RGB	rgb(39, 94, 179)
HSL	hsl(216, 64%, 43%)
HSV	hsv(216, 78%, 70%)
CMYK	cmyk(78.2%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(40.72, 12.96, -50.31)
CIE-LCH	lch(40.72, 51.95, 284.44°)
OKLab	oklab(49.3% -0.0279 -0.1445)
OKLCH	oklch(49.3% 0.147 259.1)
XYZ	xyz(12.9731, 11.6899, 44.2117)
Luminance	0.1169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275EB3 #B37C27

analogous

#27A4B3 #275EB3 #3627B3

triadic

#275EB3 #B3275E #5EB327

tetradic

#275EB3 #B327A4 #B37C27 #27B336

square

#275EB3 #B327A4 #B37C27 #27B336

split-complementary

#275EB3 #B33627 #A4B327

monochromatic

#11294E #1C4481 #275EB3 #417CD6 #749FE1

Accessibility & contrast

On white

6.29

#275EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#275EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275EB3

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275EB3	#FFFFFF	#000000	##FFFFFF
##275EB3	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F67B6

Deuteranopia (green-blind)

#035AB1

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #275eb3;
/* rgb */ color: rgb(39, 94, 179);
/* oklch */ color: oklch(49.3% 0.147 259.1);

Tailwind

colors: {
  custom: {
    50: '#768bca',
    500: '#275eb3',
    950: '#000000',
  },
}

SCSS

$custom: #275eb3;
$custom-light: #768bca;
$custom-dark: #000000;

JSON

{
  "hex": "#275eb3",
  "rgb": {
    "r": 39,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 216.429,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.49299,
    "c": 0.14714,
    "h": 259.1
  },
  "luminance": 0.11691
}

Semantic roles & 50–950 ramp

primary

#275EB3

secondary

#C8A56E

accent

#A641E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275EB3

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

Preview Lab → · Contrast checker → · Palette generator →