#436FBB#436FBB

#436FBB is a mid, vivid blue. Relative luminance 0.162; OKLCH L 54.7% C 0.129 H 260.6°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#436FBB
RGB	rgb(67, 111, 187)
HSL	hsl(218, 47%, 50%)
HSV	hsv(218, 64%, 73%)
CMYK	cmyk(64.2%, 40.6%, 0%, 26.7%)
CIE-LAB	lab(47.17, 9.24, -44.59)
CIE-LCH	lch(47.17, 45.54, 281.71°)
OKLab	oklab(54.74% -0.021 -0.1269)
OKLCH	oklch(54.74% 0.129 260.6)
XYZ	xyz(16.9656, 16.1484, 49.2270)
Luminance	0.1615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#436FBB #BB8F43

analogous

#43ABBB #436FBB #5343BB

triadic

#436FBB #BB436F #6FBB43

tetradic

#436FBB #BB43AB #BB8F43 #43BB53

square

#436FBB #BB43AB #BB8F43 #43BB53

split-complementary

#436FBB #BB5343 #ABBB43

monochromatic

#233A61 #33548E #436FBB #7091CC #9DB4DC

Accessibility & contrast

On white

4.96

#436FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#436FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #436FBB

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##436FBB	#FFFFFF	#000000	##FFFFFF
##436FBB	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D76BE

Deuteranopia (green-blind)

#3B6BB9

Tritanopia (blue-blind)

#00808C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #436fbb;
/* rgb */ color: rgb(67, 111, 187);
/* oklch */ color: oklch(54.7% 0.129 260.6);

Tailwind

colors: {
  custom: {
    50: '#8397d0',
    500: '#436fbb',
    950: '#000000',
  },
}

SCSS

$custom: #436fbb;
$custom-light: #8397d0;
$custom-dark: #000000;

JSON

{
  "hex": "#436fbb",
  "rgb": {
    "r": 67,
    "g": 111,
    "b": 187
  },
  "hsl": {
    "h": 218,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.54739,
    "c": 0.12867,
    "h": 260.6
  },
  "luminance": 0.1615
}

Semantic roles & 50–950 ramp

primary

#436FBB

secondary

#C8B492

accent

#A651D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #436FBB

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

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