#275AAB#275AAB

#275AAB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 47.8% C 0.141 H 259.4°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#275AAB
RGB	rgb(39, 90, 171)
HSL	hsl(217, 63%, 41%)
HSV	hsv(217, 77%, 67%)
CMYK	cmyk(77.2%, 47.4%, 0%, 32.9%)
CIE-LAB	lab(39.04, 12.48, -48.29)
CIE-LCH	lch(39.04, 49.88, 284.48°)
OKLab	oklab(47.84% -0.0259 -0.1386)
OKLCH	oklch(47.84% 0.141 259.4)
XYZ	xyz(11.8409, 10.6826, 39.9581)
Luminance	0.1068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275AAB #AB7827

analogous

#279CAB #275AAB #3627AB

triadic

#275AAB #AB275A #5AAB27

tetradic

#275AAB #AB279C #AB7827 #27AB36

square

#275AAB #AB279C #AB7827 #27AB36

split-complementary

#275AAB #AB3627 #9CAB27

monochromatic

#102647 #1C4079 #275AAB #3D77D3 #6E9ADE

Accessibility & contrast

On white

6.69

#275AAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#275AAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275AAB

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275AAB	#FFFFFF	#000000	##FFFFFF
##275AAB	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E62AE

Deuteranopia (green-blind)

#0956A9

Tritanopia (blue-blind)

#006D7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #275aab;
/* rgb */ color: rgb(39, 90, 171);
/* oklch */ color: oklch(47.8% 0.141 259.4);

Tailwind

colors: {
  custom: {
    50: '#7588c4',
    500: '#275aab',
    950: '#000000',
  },
}

SCSS

$custom: #275aab;
$custom-light: #7588c4;
$custom-dark: #000000;

JSON

{
  "hex": "#275aab",
  "rgb": {
    "r": 39,
    "g": 90,
    "b": 171
  },
  "hsl": {
    "h": 216.818,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.47839,
    "c": 0.14102,
    "h": 259.4
  },
  "luminance": 0.10684
}

Semantic roles & 50–950 ramp

primary

#275AAB

secondary

#C5A169

accent

#A742E6

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275AAB

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

Preview Lab → · Contrast checker → · Palette generator →