#275BB0#275BB0

#275BB0 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.4% C 0.147 H 259.8°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#275BB0
RGB	rgb(39, 91, 176)
HSL	hsl(217, 64%, 42%)
HSV	hsv(217, 78%, 69%)
CMYK	cmyk(77.8%, 48.3%, 0%, 31%)
CIE-LAB	lab(39.66, 13.76, -50.25)
CIE-LCH	lch(39.66, 52.10, 285.31°)
OKLab	oklab(48.42% -0.0259 -0.1444)
OKLCH	oklch(48.42% 0.147 259.8)
XYZ	xyz(12.4114, 11.0467, 42.5440)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275BB0 #B07C27

analogous

#27A0B0 #275BB0 #3727B0

triadic

#275BB0 #B0275B #5BB027

tetradic

#275BB0 #B027A0 #B07C27 #27B037

square

#275BB0 #B027A0 #B07C27 #27B037

split-complementary

#275BB0 #B03727 #A0B027

monochromatic

#11274C #1C417E #275BB0 #4078D5 #729BE0

Accessibility & contrast

On white

6.54

#275BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#275BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275BB0

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275BB0	#FFFFFF	#000000	##FFFFFF
##275BB0	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B64B3

Deuteranopia (green-blind)

#0058AE

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #275bb0;
/* rgb */ color: rgb(39, 91, 176);
/* oklch */ color: oklch(48.4% 0.147 259.8);

Tailwind

colors: {
  custom: {
    50: '#7688c8',
    500: '#275bb0',
    950: '#000000',
  },
}

SCSS

$custom: #275bb0;
$custom-light: #7688c8;
$custom-dark: #000000;

JSON

{
  "hex": "#275bb0",
  "rgb": {
    "r": 39,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 217.226,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.4842,
    "c": 0.14667,
    "h": 259.8
  },
  "luminance": 0.11048
}

Semantic roles & 50–950 ramp

primary

#275BB0

secondary

#C7A46C

accent

#A841E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275BB0

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

Preview Lab → · Contrast checker → · Palette generator →