#437FBB#437FBB

#437FBB is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.3% C 0.112 H 250.3°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#437FBB
RGB	rgb(67, 127, 187)
HSL	hsl(210, 47%, 50%)
HSV	hsv(210, 64%, 73%)
CMYK	cmyk(64.2%, 32.1%, 0%, 26.7%)
CIE-LAB	lab(51.79, -0.51, -37.28)
CIE-LCH	lch(51.79, 37.28, 269.22°)
OKLab	oklab(58.34% -0.0377 -0.1054)
OKLCH	oklch(58.34% 0.112 250.3)
XYZ	xyz(18.8705, 19.9580, 49.8619)
Luminance	0.1996 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FBB #BB7F43

analogous

#43BBBB #437FBB #4343BB

triadic

#437FBB #BB437F #7FBB43

tetradic

#437FBB #BB43BB #BB7F43 #43BB43

square

#437FBB #BB43BB #BB7F43 #43BB43

split-complementary

#437FBB #BB4343 #BBBB43

monochromatic

#234261 #33608E #437FBB #709ECC #9DBCDC

Accessibility & contrast

On white

4.21

#437FBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#437FBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FBB

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FBB	#FFFFFF	#000000	##000000
##437FBB	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BE

Deuteranopia (green-blind)

#5576BA

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #437fbb;
/* rgb */ color: rgb(67, 127, 187);
/* oklch */ color: oklch(58.3% 0.112 250.3);

Tailwind

colors: {
  custom: {
    50: '#83a3cf',
    500: '#437fbb',
    950: '#000000',
  },
}

SCSS

$custom: #437fbb;
$custom-light: #83a3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#437fbb",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 187
  },
  "hsl": {
    "h": 210,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.58342,
    "c": 0.11195,
    "h": 250.3
  },
  "luminance": 0.1996
}

Semantic roles & 50–950 ramp

primary

#437FBB

secondary

#C8AD92

accent

#9451D7

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #437FBB

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

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