#436BB1#436BB1

#436BB1 is a mid, moderate blue. Relative luminance 0.149; OKLCH L 53.2% C 0.119 H 260.9°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#436BB1
RGB	rgb(67, 107, 177)
HSL	hsl(218, 45%, 48%)
HSV	hsv(218, 62%, 69%)
CMYK	cmyk(62.1%, 39.5%, 0%, 30.6%)
CIE-LAB	lab(45.47, 8.24, -41.48)
CIE-LCH	lch(45.47, 42.29, 281.24°)
OKLab	oklab(53.24% -0.019 -0.1179)
OKLCH	oklch(53.24% 0.119 260.9)
XYZ	xyz(15.5055, 14.8816, 43.6418)
Luminance	0.1488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436BB1 #B18943

analogous

#43A2B1 #436BB1 #5243B1

triadic

#436BB1 #B1436B #6BB143

tetradic

#436BB1 #B143A2 #B18943 #43B152

square

#436BB1 #B143A2 #B18943 #43B152

split-complementary

#436BB1 #B15243 #A2B143

monochromatic

#213558 #325085 #436BB1 #6A8CC7 #97AED8

Accessibility & contrast

On white

5.28

#436BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#436BB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436BB1

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436BB1	#FFFFFF	#000000	##FFFFFF
##436BB1	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C71B4

Deuteranopia (green-blind)

#3D67B0

Tritanopia (blue-blind)

#007B85

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #436bb1;
/* rgb */ color: rgb(67, 107, 177);
/* oklch */ color: oklch(53.2% 0.119 260.9);

Tailwind

colors: {
  custom: {
    50: '#8195c9',
    500: '#436bb1',
    950: '#000000',
  },
}

SCSS

$custom: #436bb1;
$custom-light: #8195c9;
$custom-dark: #000000;

JSON

{
  "hex": "#436bb1",
  "rgb": {
    "r": 67,
    "g": 107,
    "b": 177
  },
  "hsl": {
    "h": 218.182,
    "s": 45.082,
    "l": 47.843
  },
  "oklch": {
    "l": 0.53244,
    "c": 0.11939,
    "h": 260.9
  },
  "luminance": 0.14883
}

Semantic roles & 50–950 ramp

primary

#436BB1

secondary

#C3AF8C

accent

#A653D5

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #436BB1

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

Preview Lab → · Contrast checker → · Palette generator →