#275AB1#275AB1

#275AB1 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.3% C 0.149 H 260.4°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#275AB1
RGB	rgb(39, 90, 177)
HSL	hsl(218, 64%, 42%)
HSV	hsv(218, 78%, 69%)
CMYK	cmyk(78%, 49.2%, 0%, 30.6%)
CIE-LAB	lab(39.44, 14.80, -51.19)
CIE-LCH	lch(39.44, 53.29, 286.13°)
OKLab	oklab(48.27% -0.0249 -0.1472)
OKLCH	oklch(48.27% 0.149 260.4)
XYZ	xyz(12.4258, 10.9165, 43.0387)
Luminance	0.1092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275AB1 #B17E27

analogous

#279FB1 #275AB1 #3927B1

triadic

#275AB1 #B1275A #5AB127

tetradic

#275AB1 #B1279F #B17E27 #27B139

square

#275AB1 #B1279F #B17E27 #27B139

split-complementary

#275AB1 #B13927 #9FB127

monochromatic

#11274D #1C417F #275AB1 #4077D5 #729BE0

Accessibility & contrast

On white

6.60

#275AB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#275AB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275AB1

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275AB1	#FFFFFF	#000000	##FFFFFF
##275AB1	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2764B4

Deuteranopia (green-blind)

#0057AF

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #275ab1;
/* rgb */ color: rgb(39, 90, 177);
/* oklch */ color: oklch(48.3% 0.149 260.4);

Tailwind

colors: {
  custom: {
    50: '#7688c9',
    500: '#275ab1',
    950: '#000000',
  },
}

SCSS

$custom: #275ab1;
$custom-light: #7688c9;
$custom-dark: #000000;

JSON

{
  "hex": "#275ab1",
  "rgb": {
    "r": 39,
    "g": 90,
    "b": 177
  },
  "hsl": {
    "h": 217.826,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48273,
    "c": 0.14926,
    "h": 260.4
  },
  "luminance": 0.10918
}

Semantic roles & 50–950 ramp

primary

#275AB1

secondary

#C7A66D

accent

#AA41E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275AB1

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

Preview Lab → · Contrast checker → · Palette generator →