#2A5CB1#2A5CB1

#2A5CB1 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.8% C 0.146 H 260.3°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#2A5CB1
RGB	rgb(42, 92, 177)
HSL	hsl(218, 62%, 43%)
HSV	hsv(218, 76%, 69%)
CMYK	cmyk(76.3%, 48%, 0%, 30.6%)
CIE-LAB	lab(40.11, 13.85, -50.10)
CIE-LCH	lch(40.11, 51.98, 285.45°)
OKLab	oklab(48.82% -0.0245 -0.1439)
OKLCH	oklch(48.82% 0.146 260.3)
XYZ	xyz(12.7149, 11.3194, 43.1012)
Luminance	0.1132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A5CB1 #B17F2A

analogous

#2A9FB1 #2A5CB1 #3C2AB1

triadic

#2A5CB1 #B12A5C #5CB12A

tetradic

#2A5CB1 #B12A9F #B17F2A #2AB13C

square

#2A5CB1 #B12A9F #B17F2A #2AB13C

split-complementary

#2A5CB1 #B13C2A #9FB12A

monochromatic

#13294E #1E4280 #2A5CB1 #457AD3 #779DDF

Accessibility & contrast

On white

6.43

#2A5CB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#2A5CB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A5CB1

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A5CB1	#FFFFFF	#000000	##FFFFFF
##2A5CB1	1.00	6.43	3.26	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D65B4

Deuteranopia (green-blind)

#0159AF

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #2a5cb1;
/* rgb */ color: rgb(42, 92, 177);
/* oklch */ color: oklch(48.8% 0.146 260.3);

Tailwind

colors: {
  custom: {
    50: '#7789c9',
    500: '#2a5cb1',
    950: '#000000',
  },
}

SCSS

$custom: #2a5cb1;
$custom-light: #7789c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a5cb1",
  "rgb": {
    "r": 42,
    "g": 92,
    "b": 177
  },
  "hsl": {
    "h": 217.778,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48819,
    "c": 0.14595,
    "h": 260.3
  },
  "luminance": 0.11321
}

Semantic roles & 50–950 ramp

primary

#2A5CB1

secondary

#C6A770

accent

#A943E5

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2A5CB1

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

Preview Lab → · Contrast checker → · Palette generator →