#2A5BB1#2A5BB1

#2A5BB1 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.6% C 0.147 H 260.7°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#2A5BB1
RGB	rgb(42, 91, 177)
HSL	hsl(218, 62%, 43%)
HSV	hsv(218, 76%, 69%)
CMYK	cmyk(76.3%, 48.6%, 0%, 30.6%)
CIE-LAB	lab(39.83, 14.50, -50.56)
CIE-LCH	lch(39.83, 52.60, 286.01°)
OKLab	oklab(48.6% -0.0237 -0.1452)
OKLCH	oklch(48.6% 0.147 260.7)
XYZ	xyz(12.6289, 11.1473, 43.0725)
Luminance	0.1115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A5BB1 #B1802A

analogous

#2A9EB1 #2A5BB1 #3C2AB1

triadic

#2A5BB1 #B12A5B #5BB12A

tetradic

#2A5BB1 #B12A9E #B1802A #2AB13C

square

#2A5BB1 #B12A9E #B1802A #2AB13C

split-complementary

#2A5BB1 #B13C2A #9EB12A

monochromatic

#13284E #1E4280 #2A5BB1 #4579D3 #779CDF

Accessibility & contrast

On white

6.50

#2A5BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#2A5BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A5BB1

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A5BB1	#FFFFFF	#000000	##FFFFFF
##2A5BB1	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A64B4

Deuteranopia (green-blind)

#0058AF

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2a5bb1;
/* rgb */ color: rgb(42, 91, 177);
/* oklch */ color: oklch(48.6% 0.147 260.7);

Tailwind

colors: {
  custom: {
    50: '#7788c9',
    500: '#2a5bb1',
    950: '#000000',
  },
}

SCSS

$custom: #2a5bb1;
$custom-light: #7788c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a5bb1",
  "rgb": {
    "r": 42,
    "g": 91,
    "b": 177
  },
  "hsl": {
    "h": 218.222,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48599,
    "c": 0.14716,
    "h": 260.7
  },
  "luminance": 0.11149
}

Semantic roles & 50–950 ramp

primary

#2A5BB1

secondary

#C6A770

accent

#AA43E5

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2A5BB1

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

Preview Lab → · Contrast checker → · Palette generator →