#437CDD#437CDD

#437CDD is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.7% C 0.160 H 260.3°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#437CDD
RGB	rgb(67, 124, 221)
HSL	hsl(218, 69%, 56%)
HSV	hsv(218, 70%, 87%)
CMYK	cmyk(69.7%, 43.9%, 0%, 13.3%)
CIE-LAB	lab(52.76, 13.24, -55.06)
CIE-LCH	lch(52.76, 56.63, 283.52°)
OKLab	oklab(59.69% -0.0268 -0.1575)
OKLCH	oklch(59.69% 0.16 260.3)
XYZ	xyz(22.5689, 20.8267, 71.2231)
Luminance	0.2083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CDD #DDA443

analogous

#43C9DD #437CDD #5743DD

triadic

#437CDD #DD437C #7CDD43

tetradic

#437CDD #DD43C9 #DDA443 #43DD57

square

#437CDD #DD43C9 #DDA443 #43DD57

split-complementary

#437CDD #DD5743 #C9DD43

monochromatic

#19448C #235DC0 #437CDD #77A0E6 #ABC4F0

Accessibility & contrast

On white

4.07

#437CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#437CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CDD

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CDD	#FFFFFF	#000000	##000000
##437CDD	1.00	4.07	5.17	5.17
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C86E1

Deuteranopia (green-blind)

#3077DB

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #437cdd;
/* rgb */ color: rgb(67, 124, 221);
/* oklch */ color: oklch(59.7% 0.160 260.3);

Tailwind

colors: {
  custom: {
    50: '#88a1e8',
    500: '#437cdd',
    950: '#000000',
  },
}

SCSS

$custom: #437cdd;
$custom-light: #88a1e8;
$custom-dark: #000000;

JSON

{
  "hex": "#437cdd",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 221
  },
  "hsl": {
    "h": 217.792,
    "s": 69.369,
    "l": 56.471
  },
  "oklch": {
    "l": 0.5969,
    "c": 0.15978,
    "h": 260.3
  },
  "luminance": 0.20829
}

Semantic roles & 50–950 ramp

primary

#437CDD

secondary

#DEC69E

accent

#AB3CEC

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #437CDD

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

Preview Lab → · Contrast checker → · Palette generator →