#33645E
Closest named color: Dark Green Blue (#1F6357). oklch(46.7% 0.054 185.3), rgb(51, 100, 94).
Aa
White text reads best on this color (6.71:1).
About this color
#33645E is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.054 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.022 away. White text reads best on it, at 6.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #33645E |
| RGB | rgb(51, 100, 94) |
| HSL | hsl(173, 32%, 30%) |
| OKLCH | oklch(46.7% 0.054 185.3) |
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 #33645E | 6.71:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #33645E | 3.12:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #33645E text on white | 6.71:1 | AA | Lc 83.0 | Fine for body text |
| #33645E text on black | 3.12:1 | AA large text | Lc -18.9 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5ECEA
oklch(93.7% 0.008 177.3)
-
Step 200
200
#CFDCDA
oklch(88.4% 0.014 185.9)
-
Step 300
300
#AFC6C3
oklch(80.8% 0.025 187.2)
-
Step 400
400
#84AAA4
oklch(70.8% 0.042 184.4)
-
Step 500
500
#63948E
oklch(63% 0.054 186.3)
-
Step 600
600
#497F78
oklch(55.7% 0.059 185.1)
-
Step 700
700 (this color)
#33645E
oklch(46.7% 0.054 185.3)
-
Step 800
800
#305752
oklch(42.6% 0.045 185.2)
-
Step 900
900
#2B4844
oklch(37.7% 0.036 184.8)
-
Step 950
950
#1A2A28
oklch(27% 0.022 186.2)
#33645E 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) | #605F5E | 0.059 |
| Deuteranopia (no green cones) | #57595F | 0.055 |
| Tritanopia (no blue cones) | #1C6662 | 0.017 |
| Achromatopsia (no color) | #5C5C5C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33645E
#33645E
oklch(46.7% 0.054 185.3)
- #744D56
#744D56
oklch(46.6% 0.054 4.3)
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 #33645E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.022
- Dark Aqua #05696B ΔE 0.029
- Petrol #005F6A ΔE 0.041
- Dark Aquamarine #017371 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.050
- Slate #516572 ΔE 0.051
- YInMn Blue #415A77 ΔE 0.062
- Deep Teal #00555A ΔE 0.062
Use #33645E 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.