#33646E
Closest named color: Dark Aqua (#05696B). oklch(47.3% 0.055 212.5), rgb(51, 100, 110).
Aa
White text reads best on this color (6.58:1).
About this color
#33646E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.055 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.030 away. White text reads best on it, at 6.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.18:1 |
| White text | 6.58:1 |
Values
| HEX | #33646E |
| RGB | rgb(51, 100, 110) |
| HSL | hsl(190, 37%, 32%) |
| OKLCH | oklch(47.3% 0.055 212.5) |
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 #33646E | 6.58:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #33646E | 3.18:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #33646E text on white | 6.58:1 | AA | Lc 82.5 | Fine for body text |
| #33646E text on black | 3.18:1 | AA large text | Lc -19.4 | 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
#AEC6CB
oklch(81% 0.027 211.6)
-
Step 400
400
#82A8B0
oklch(70.6% 0.043 212)
-
Step 500
500
#62939D
oklch(63.2% 0.055 211.8)
-
Step 600
600
#477D88
oklch(55.7% 0.06 212.2)
-
Step 700
700 (this color)
#33646E
oklch(47.3% 0.055 212.5)
-
Step 800
800
#2F565E
oklch(42.8% 0.046 212.3)
-
Step 900
900
#2A474D
oklch(37.8% 0.036 212.2)
-
Step 950
950
#19292D
oklch(26.9% 0.023 215.1)
#33646E 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) | #5C616F | 0.051 |
| Deuteranopia (no green cones) | #535A6E | 0.047 |
| Tritanopia (no blue cones) | #0D6867 | 0.031 |
| Achromatopsia (no color) | #5D5D5D | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33646E
#33646E
oklch(47.3% 0.055 212.5)
- #785048
#785048
oklch(47.3% 0.056 31.7)
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 #33646E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.030
- Petrol #005F6A ΔE 0.036
- Slate #516572 ΔE 0.037
- YInMn Blue #415A77 ΔE 0.041
- Dark Green Blue #1F6357 ΔE 0.043
- Deep Turquoise #017374 ΔE 0.047
- Dark Aquamarine #017371 ΔE 0.049
- Denim #3B638C ΔE 0.052
Use #33646E 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.