#275CB3#275CB3

#275CB3 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.9% C 0.150 H 259.9°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#275CB3
RGB	rgb(39, 92, 179)
HSL	hsl(217, 64%, 43%)
HSV	hsv(217, 78%, 70%)
CMYK	cmyk(78.2%, 48.6%, 0%, 29.8%)
CIE-LAB	lab(40.15, 14.27, -51.23)
CIE-LCH	lch(40.15, 53.18, 285.56°)
OKLab	oklab(48.86% -0.0262 -0.1472)
OKLCH	oklch(48.86% 0.15 259.9)
XYZ	xyz(12.7976, 11.3388, 44.1532)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275CB3 #B37E27

analogous

#27A2B3 #275CB3 #3827B3

triadic

#275CB3 #B3275C #5CB327

tetradic

#275CB3 #B327A2 #B37E27 #27B338

square

#275CB3 #B327A2 #B37E27 #27B338

split-complementary

#275CB3 #B33827 #A2B327

monochromatic

#11284E #1C4281 #275CB3 #417AD6 #749DE1

Accessibility & contrast

On white

6.43

#275CB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#275CB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275CB3

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275CB3	#FFFFFF	#000000	##FFFFFF
##275CB3	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A65B6

Deuteranopia (green-blind)

#0059B1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275cb3;
/* rgb */ color: rgb(39, 92, 179);
/* oklch */ color: oklch(48.9% 0.150 259.9);

Tailwind

colors: {
  custom: {
    50: '#7689ca',
    500: '#275cb3',
    950: '#000000',
  },
}

SCSS

$custom: #275cb3;
$custom-light: #7689ca;
$custom-dark: #000000;

JSON

{
  "hex": "#275cb3",
  "rgb": {
    "r": 39,
    "g": 92,
    "b": 179
  },
  "hsl": {
    "h": 217.286,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48858,
    "c": 0.14955,
    "h": 259.9
  },
  "luminance": 0.1134
}

Semantic roles & 50–950 ramp

primary

#275CB3

secondary

#C8A66E

accent

#A841E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275CB3

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

Preview Lab → · Contrast checker → · Palette generator →