#437CDF#437CDF

#437CDF is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.8% C 0.162 H 260.6°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#437CDF
RGB	rgb(67, 124, 223)
HSL	hsl(218, 71%, 57%)
HSV	hsv(218, 70%, 87%)
CMYK	cmyk(70%, 44.4%, 0%, 12.5%)
CIE-LAB	lab(52.88, 13.96, -56.00)
CIE-LCH	lch(52.88, 57.71, 283.99°)
OKLab	oklab(59.82% -0.0265 -0.1603)
OKLCH	oklch(59.82% 0.162 260.6)
XYZ	xyz(22.8369, 20.9339, 72.6348)
Luminance	0.2094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CDF #DFA643

analogous

#43CADF #437CDF #5843DF

triadic

#437CDF #DF437C #7CDF43

tetradic

#437CDF #DF43CA #DFA643 #43DF58

square

#437CDF #DF43CA #DFA643 #43DF58

split-complementary

#437CDF #DF5843 #CADF43

monochromatic

#18448F #215DC4 #437CDF #77A0E8 #ACC5F1

Accessibility & contrast

On white

4.05

#437CDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#437CDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CDF

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CDF	#FFFFFF	#000000	##000000
##437CDF	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B86E3

Deuteranopia (green-blind)

#2D78DD

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #437cdf;
/* rgb */ color: rgb(67, 124, 223);
/* oklch */ color: oklch(59.8% 0.162 260.6);

Tailwind

colors: {
  custom: {
    50: '#89a1e9',
    500: '#437cdf',
    950: '#000000',
  },
}

SCSS

$custom: #437cdf;
$custom-light: #89a1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#437cdf",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 223
  },
  "hsl": {
    "h": 218.077,
    "s": 70.909,
    "l": 56.863
  },
  "oklch": {
    "l": 0.59819,
    "c": 0.16244,
    "h": 260.6
  },
  "luminance": 0.20936
}

Semantic roles & 50–950 ramp

primary

#437CDF

secondary

#DFC79F

accent

#AC3AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #437CDF

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

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