#275CB4#275CB4

#275CB4 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 48.9% C 0.151 H 260.0°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#275CB4
RGB	rgb(39, 92, 180)
HSL	hsl(217, 64%, 43%)
HSV	hsv(217, 78%, 71%)
CMYK	cmyk(78.3%, 48.9%, 0%, 29.4%)
CIE-LAB	lab(40.21, 14.65, -51.71)
CIE-LCH	lch(40.21, 53.75, 285.82°)
OKLab	oklab(48.93% -0.0261 -0.1486)
OKLCH	oklch(48.93% 0.151 260)
XYZ	xyz(12.8991, 11.3794, 44.6878)
Luminance	0.1138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CB4 #B47F27

analogous

#27A2B4 #275CB4 #3827B4

triadic

#275CB4 #B4275C #5CB427

tetradic

#275CB4 #B427A2 #B47F27 #27B438

square

#275CB4 #B427A2 #B47F27 #27B438

split-complementary

#275CB4 #B43827 #A2B427

monochromatic

#11294F #1C4282 #275CB4 #427AD6 #749DE1

Accessibility & contrast

On white

6.41

#275CB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#275CB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CB4

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CB4	#FFFFFF	#000000	##FFFFFF
##275CB4	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2966B7

Deuteranopia (green-blind)

#0059B2

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275cb4;
/* rgb */ color: rgb(39, 92, 180);
/* oklch */ color: oklch(48.9% 0.151 260.0);

Tailwind

colors: {
  custom: {
    50: '#7789cb',
    500: '#275cb4',
    950: '#000000',
  },
}

SCSS

$custom: #275cb4;
$custom-light: #7789cb;
$custom-dark: #000000;

JSON

{
  "hex": "#275cb4",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 180
  },
  "hsl": {
    "h": 217.447,
    "s": 64.384,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4893,
    "c": 0.15092,
    "h": 260
  },
  "luminance": 0.11381
}

Semantic roles & 50–950 ramp

primary

#275CB4

secondary

#C8A76F

accent

#A940E7

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275CB4

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

Preview Lab → · Contrast checker → · Palette generator →