#2B5DB1#2B5DB1

#2B5DB1 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.1% C 0.144 H 260.2°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#2B5DB1
RGB	rgb(43, 93, 177)
HSL	hsl(218, 61%, 43%)
HSV	hsv(218, 76%, 69%)
CMYK	cmyk(75.7%, 47.5%, 0%, 30.6%)
CIE-LAB	lab(40.44, 13.32, -49.58)
CIE-LCH	lch(40.44, 51.34, 285.04°)
OKLab	oklab(49.08% -0.0247 -0.1423)
OKLCH	oklch(49.08% 0.144 260.2)
XYZ	xyz(12.8436, 11.5152, 43.1322)
Luminance	0.1152 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5DB1 #B17F2B

analogous

#2BA0B1 #2B5DB1 #3C2BB1

triadic

#2B5DB1 #B12B5D #5DB12B

tetradic

#2B5DB1 #B12BA0 #B17F2B #2BB13C

square

#2B5DB1 #B12BA0 #B17F2B #2BB13C

split-complementary

#2B5DB1 #B13C2B #A0B12B

monochromatic

#13294F #1F4380 #2B5DB1 #477BD2 #789EDE

Accessibility & contrast

On white

6.36

#2B5DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#2B5DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5DB1

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5DB1	#FFFFFF	#000000	##FFFFFF
##2B5DB1	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F66B4

Deuteranopia (green-blind)

#095AAF

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #2b5db1;
/* rgb */ color: rgb(43, 93, 177);
/* oklch */ color: oklch(49.1% 0.144 260.2);

Tailwind

colors: {
  custom: {
    50: '#778ac9',
    500: '#2b5db1',
    950: '#000000',
  },
}

SCSS

$custom: #2b5db1;
$custom-light: #778ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5db1",
  "rgb": {
    "r": 43,
    "g": 93,
    "b": 177
  },
  "hsl": {
    "h": 217.612,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49076,
    "c": 0.14443,
    "h": 260.2
  },
  "luminance": 0.11517
}

Semantic roles & 50–950 ramp

primary

#2B5DB1

secondary

#C6A772

accent

#A844E4

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B5DB1

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

Preview Lab → · Contrast checker → · Palette generator →