#437CDE#437CDE

#437CDE is a mid, vivid blue. Relative luminance 0.209; OKLCH L 59.8% C 0.161 H 260.5°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#437CDE
RGB	rgb(67, 124, 222)
HSL	hsl(218, 70%, 57%)
HSV	hsv(218, 70%, 87%)
CMYK	cmyk(69.8%, 44.1%, 0%, 12.9%)
CIE-LAB	lab(52.82, 13.60, -55.53)
CIE-LCH	lch(52.82, 57.17, 283.76°)
OKLab	oklab(59.75% -0.0267 -0.1589)
OKLCH	oklch(59.75% 0.161 260.5)
XYZ	xyz(22.7025, 20.8801, 71.9269)
Luminance	0.2088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CDE #DEA543

analogous

#43CADE #437CDE #5743DE

triadic

#437CDE #DE437C #7CDE43

tetradic

#437CDE #DE43CA #DEA543 #43DE57

square

#437CDE #DE43CA #DEA543 #43DE57

split-complementary

#437CDE #DE5743 #CADE43

monochromatic

#19448E #225DC2 #437CDE #77A0E7 #ABC5F0

Accessibility & contrast

On white

4.06

#437CDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#437CDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CDE

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CDE	#FFFFFF	#000000	##000000
##437CDE	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B86E2

Deuteranopia (green-blind)

#2E77DC

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #437cde;
/* rgb */ color: rgb(67, 124, 222);
/* oklch */ color: oklch(59.8% 0.161 260.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#437cde",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 222
  },
  "hsl": {
    "h": 217.935,
    "s": 70.136,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59754,
    "c": 0.16111,
    "h": 260.5
  },
  "luminance": 0.20883
}

Semantic roles & 50–950 ramp

primary

#437CDE

secondary

#DEC79F

accent

#AB3BED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #437CDE

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

Preview Lab → · Contrast checker → · Palette generator →