#275BB4#275BB4

#275BB4 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.7% C 0.152 H 260.4°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#275BB4
RGB	rgb(39, 91, 180)
HSL	hsl(218, 64%, 43%)
HSV	hsv(218, 78%, 71%)
CMYK	cmyk(78.3%, 49.4%, 0%, 29.4%)
CIE-LAB	lab(39.93, 15.31, -52.17)
CIE-LCH	lch(39.93, 54.37, 286.35°)
OKLab	oklab(48.71% -0.0253 -0.15)
OKLCH	oklch(48.71% 0.152 260.4)
XYZ	xyz(12.8130, 11.2073, 44.6591)
Luminance	0.1121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275BB4 #B48027

analogous

#27A2B4 #275BB4 #3927B4

triadic

#275BB4 #B4275B #5BB427

tetradic

#275BB4 #B427A2 #B48027 #27B439

square

#275BB4 #B427A2 #B48027 #27B439

split-complementary

#275BB4 #B43927 #A2B427

monochromatic

#11284F #1C4282 #275BB4 #4279D6 #749CE1

Accessibility & contrast

On white

6.48

#275BB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#275BB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275BB4

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275BB4	#FFFFFF	#000000	##FFFFFF
##275BB4	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2665B7

Deuteranopia (green-blind)

#0058B2

Tritanopia (blue-blind)

#00707F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #275bb4;
/* rgb */ color: rgb(39, 91, 180);
/* oklch */ color: oklch(48.7% 0.152 260.4);

Tailwind

colors: {
  custom: {
    50: '#7788cb',
    500: '#275bb4',
    950: '#000000',
  },
}

SCSS

$custom: #275bb4;
$custom-light: #7788cb;
$custom-dark: #000000;

JSON

{
  "hex": "#275bb4",
  "rgb": {
    "r": 39,
    "g": 91,
    "b": 180
  },
  "hsl": {
    "h": 217.872,
    "s": 64.384,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48712,
    "c": 0.15214,
    "h": 260.4
  },
  "luminance": 0.11209
}

Semantic roles & 50–950 ramp

primary

#275BB4

secondary

#C8A76F

accent

#AA40E7

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275BB4

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

Preview Lab → · Contrast checker → · Palette generator →