#275DB1#275DB1

#275DB1 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 48.9% C 0.146 H 259.2°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#275DB1
RGB	rgb(39, 93, 177)
HSL	hsl(217, 64%, 42%)
HSV	hsv(217, 78%, 69%)
CMYK	cmyk(78%, 47.5%, 0%, 30.6%)
CIE-LAB	lab(40.30, 12.84, -49.81)
CIE-LCH	lch(40.30, 51.43, 284.45°)
OKLab	oklab(48.93% -0.0274 -0.143)
OKLCH	oklch(48.93% 0.146 259.2)
XYZ	xyz(12.6840, 11.4329, 43.1247)
Luminance	0.1143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275DB1 #B17B27

analogous

#27A2B1 #275DB1 #3627B1

triadic

#275DB1 #B1275D #5DB127

tetradic

#275DB1 #B127A2 #B17B27 #27B136

square

#275DB1 #B127A2 #B17B27 #27B136

split-complementary

#275DB1 #B13627 #A2B127

monochromatic

#11284D #1C437F #275DB1 #407AD5 #729DE0

Accessibility & contrast

On white

6.39

#275DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#275DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275DB1

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275DB1	#FFFFFF	#000000	##FFFFFF
##275DB1	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F66B4

Deuteranopia (green-blind)

#0559AF

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #275db1;
/* rgb */ color: rgb(39, 93, 177);
/* oklch */ color: oklch(48.9% 0.146 259.2);

Tailwind

colors: {
  custom: {
    50: '#768ac9',
    500: '#275db1',
    950: '#000000',
  },
}

SCSS

$custom: #275db1;
$custom-light: #768ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#275db1",
  "rgb": {
    "r": 39,
    "g": 93,
    "b": 177
  },
  "hsl": {
    "h": 216.522,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48934,
    "c": 0.14562,
    "h": 259.2
  },
  "luminance": 0.11434
}

Semantic roles & 50–950 ramp

primary

#275DB1

secondary

#C7A46D

accent

#A641E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275DB1

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

Preview Lab → · Contrast checker → · Palette generator →