#275CB0#275CB0

#275CB0 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.6% C 0.145 H 259.4°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#275CB0
RGB	rgb(39, 92, 176)
HSL	hsl(217, 64%, 42%)
HSV	hsv(217, 78%, 69%)
CMYK	cmyk(77.8%, 47.7%, 0%, 31%)
CIE-LAB	lab(39.95, 13.10, -49.79)
CIE-LCH	lch(39.95, 51.48, 284.75°)
OKLab	oklab(48.64% -0.0267 -0.143)
OKLCH	oklch(48.64% 0.145 259.4)
XYZ	xyz(12.4975, 11.2188, 42.5727)
Luminance	0.1122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CB0 #B07B27

analogous

#27A1B0 #275CB0 #3627B0

triadic

#275CB0 #B0275C #5CB027

tetradic

#275CB0 #B027A1 #B07B27 #27B036

square

#275CB0 #B027A1 #B07B27 #27B036

split-complementary

#275CB0 #B03627 #A1B027

monochromatic

#11284C #1C427E #275CB0 #4079D5 #729CE0

Accessibility & contrast

On white

6.47

#275CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#275CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CB0

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CB0	#FFFFFF	#000000	##FFFFFF
##275CB0	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E65B3

Deuteranopia (green-blind)

#0258AE

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #275cb0;
/* rgb */ color: rgb(39, 92, 176);
/* oklch */ color: oklch(48.6% 0.145 259.4);

Tailwind

colors: {
  custom: {
    50: '#7689c8',
    500: '#275cb0',
    950: '#000000',
  },
}

SCSS

$custom: #275cb0;
$custom-light: #7689c8;
$custom-dark: #000000;

JSON

{
  "hex": "#275cb0",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 176
  },
  "hsl": {
    "h": 216.788,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.48641,
    "c": 0.14546,
    "h": 259.4
  },
  "luminance": 0.1122
}

Semantic roles & 50–950 ramp

primary

#275CB0

secondary

#C7A46C

accent

#A741E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275CB0

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

Preview Lab → · Contrast checker → · Palette generator →