#275AB3#275AB3

#275AB3 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.4% C 0.152 H 260.7°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#275AB3
RGB	rgb(39, 90, 179)
HSL	hsl(218, 64%, 43%)
HSV	hsv(218, 78%, 70%)
CMYK	cmyk(78.2%, 49.7%, 0%, 29.8%)
CIE-LAB	lab(39.58, 15.58, -52.15)
CIE-LCH	lch(39.58, 54.43, 286.63°)
OKLab	oklab(48.42% -0.0247 -0.15)
OKLCH	oklch(48.42% 0.152 260.7)
XYZ	xyz(12.6266, 10.9969, 44.0962)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#275AB3 #B38027

analogous

#27A0B3 #275AB3 #3A27B3

triadic

#275AB3 #B3275A #5AB327

tetradic

#275AB3 #B327A0 #B38027 #27B33A

square

#275AB3 #B327A0 #B38027 #27B33A

split-complementary

#275AB3 #B33A27 #A0B327

monochromatic

#11274E #1C4181 #275AB3 #4177D6 #749BE1

Accessibility & contrast

On white

6.56

#275AB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#275AB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #275AB3

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##275AB3	#FFFFFF	#000000	##FFFFFF
##275AB3	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2564B6

Deuteranopia (green-blind)

#0057B1

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #275ab3;
/* rgb */ color: rgb(39, 90, 179);
/* oklch */ color: oklch(48.4% 0.152 260.7);

Tailwind

colors: {
  custom: {
    50: '#7788ca',
    500: '#275ab3',
    950: '#000000',
  },
}

SCSS

$custom: #275ab3;
$custom-light: #7788ca;
$custom-dark: #000000;

JSON

{
  "hex": "#275ab3",
  "rgb": {
    "r": 39,
    "g": 90,
    "b": 179
  },
  "hsl": {
    "h": 218.143,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48421,
    "c": 0.15199,
    "h": 260.7
  },
  "luminance": 0.10998
}

Semantic roles & 50–950 ramp

primary

#275AB3

secondary

#C8A76E

accent

#AB41E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #275AB3

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

Preview Lab → · Contrast checker → · Palette generator →