#33665A
Closest named color: Dark Green Blue (#1F6357). oklch(47.1% 0.059 176.4), rgb(51, 102, 90).
Aa
White text reads best on this color (6.58:1).
About this color
#33665A is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.059 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.021 away. White text reads best on it, at 6.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.18:1 |
| White text | 6.58:1 |
Values
| HEX | #33665A |
| RGB | rgb(51, 102, 90) |
| HSL | hsl(166, 33%, 30%) |
| OKLCH | oklch(47.1% 0.059 176.4) |
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 #33665A | 6.58:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #33665A | 3.18:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #33665A text on white | 6.58:1 | AA | Lc 82.5 | Fine for body text |
| #33665A text on black | 3.18:1 | AA large text | Lc -19.5 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CFDDD9
oklch(88.6% 0.016 177)
-
Step 300
300
#AEC7C0
oklch(80.9% 0.029 176.9)
-
Step 400
400
#83AAA0
oklch(70.6% 0.045 177.5)
-
Step 500
500
#629588
oklch(63% 0.058 176.5)
-
Step 600
600
#488072
oklch(55.7% 0.064 175.9)
-
Step 700
700 (this color)
#33665A
oklch(47.1% 0.059 176.4)
-
Step 800
800
#30584E
oklch(42.8% 0.049 175.9)
-
Step 900
900
#2B4841
oklch(37.6% 0.037 177.2)
-
Step 950
950
#192A26
oklch(26.9% 0.024 178)
#33665A 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) | #636159 | 0.062 |
| Deuteranopia (no green cones) | #5A5B5B | 0.058 |
| Tritanopia (no blue cones) | #1E6762 | 0.018 |
| Achromatopsia (no color) | #5D5D5D | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33665A
#33665A
oklch(47.1% 0.059 176.4)
- #764D5C
#764D5C
oklch(47.1% 0.059 356)
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 #33665A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.021
- Dark Aqua #05696B ΔE 0.032
- Dark Aquamarine #017371 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.048
- Petrol #005F6A ΔE 0.049
- Slate #516572 ΔE 0.057
- Pine #2B5D34 ΔE 0.059
- Spruce #0A5F38 ΔE 0.064
Use #33665A 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.