#33636E
Closest named color: Dark Aqua (#05696B). oklch(47% 0.055 214.4), rgb(51, 99, 110).
Aa
White text reads best on this color (6.66:1).
About this color
#33636E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.055 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.031 away. White text reads best on it, at 6.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.15:1 |
| White text | 6.66:1 |
Values
| HEX | #33636E |
| RGB | rgb(51, 99, 110) |
| HSL | hsl(191, 37%, 32%) |
| OKLCH | oklch(47% 0.055 214.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #33636E | 6.66:1 | AA | Lc -87.8 | Fine for body text |
| Black text on #33636E | 3.15:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #33636E text on white | 6.66:1 | AA | Lc 82.8 | Fine for body text |
| #33636E text on black | 3.15:1 | AA large text | Lc -19.1 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CFDCDF
oklch(88.6% 0.015 213.1)
-
Step 300
300
#AEC5CB
oklch(80.8% 0.026 215.2)
-
Step 400
400
#83A8B1
oklch(70.7% 0.042 214.2)
-
Step 500
500
#62929E
oklch(63% 0.055 215.1)
-
Step 600
600
#487C89
oklch(55.5% 0.059 215.6)
-
Step 700
700 (this color)
#33636E
oklch(47% 0.055 214.4)
-
Step 800
800
#30565E
oklch(42.8% 0.045 212.7)
-
Step 900
900
#2B474D
oklch(37.8% 0.035 212.7)
-
Step 950
950
#19292D
oklch(26.9% 0.023 215.1)
#33636E with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #5B606F | 0.050 |
| Deuteranopia (no green cones) | #52596E | 0.046 |
| Tritanopia (no blue cones) | #0D6766 | 0.032 |
| Achromatopsia (no color) | #5C5C5C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33636E
#33636E
oklch(47% 0.055 214.4)
- #775046
#775046
oklch(47.1% 0.055 35)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #33636E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.031
- Petrol #005F6A ΔE 0.035
- Slate #516572 ΔE 0.038
- YInMn Blue #415A77 ΔE 0.038
- Dark Green Blue #1F6357 ΔE 0.044
- Deep Turquoise #017374 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.051
- Denim #3B638C ΔE 0.052
Use #33636E in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.