#237D8F#237D8F

#237D8F is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 54.6% C 0.085 H 214.2°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#237D8F
RGB	rgb(35, 125, 143)
HSL	hsl(190, 61%, 35%)
HSV	hsv(190, 76%, 56%)
CMYK	cmyk(75.5%, 12.6%, 0%, 43.9%)
CIE-LAB	lab(48.27, -19.52, -17.25)
CIE-LCH	lch(48.27, 26.05, 221.47°)
OKLab	oklab(54.63% -0.0706 -0.0481)
OKLCH	oklch(54.63% 0.085 214.2)
XYZ	xyz(12.9826, 17.0062, 28.5796)
Luminance	0.1701 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237D8F #8F3523

analogous

#238F6B #237D8F #23478F

triadic

#237D8F #8F237D #7D8F23

tetradic

#237D8F #6B238F #8F3523 #478F23

square

#237D8F #6B238F #8F3523 #478F23

split-complementary

#237D8F #8F2347 #8F6B23

monochromatic

#0B272D #17525E #237D8F #2FA8C0 #57C1D6

Accessibility & contrast

On white

4.77

#237D8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#237D8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237D8F

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237D8F	#FFFFFF	#000000	##FFFFFF
##237D8F	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#707990

Deuteranopia (green-blind)

#616E8F

Tritanopia (blue-blind)

#008483

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237d8f;
/* rgb */ color: rgb(35, 125, 143);
/* oklch */ color: oklch(54.6% 0.085 214.2);

Tailwind

colors: {
  custom: {
    50: '#6fa3af',
    500: '#237d8f',
    950: '#000000',
  },
}

SCSS

$custom: #237d8f;
$custom-light: #6fa3af;
$custom-dark: #000000;

JSON

{
  "hex": "#237d8f",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 143
  },
  "hsl": {
    "h": 190,
    "s": 60.674,
    "l": 34.902
  },
  "oklch": {
    "l": 0.54631,
    "c": 0.08545,
    "h": 214.2
  },
  "luminance": 0.17008
}

Semantic roles & 50–950 ramp

primary

#237D8F

secondary

#BA6554

accent

#5F44E4

background

#F7FAFA

surface

#EDF3F4

border

#C8CDCE

text

#080F10

muted

#7B7F7F

Preview Lab

Preview with #237D8F

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

Preview Lab → · Contrast checker → · Palette generator →