#33645C
Closest named color: Dark Green Blue (#1F6357). oklch(46.6% 0.055 182), rgb(51, 100, 92).
Aa
White text reads best on this color (6.73:1).
About this color
#33645C is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.055 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.020 away. White text reads best on it, at 6.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.11:1 |
| White text | 6.73:1 |
Values
| HEX | #33645C |
| RGB | rgb(51, 100, 92) |
| HSL | hsl(170, 32%, 30%) |
| OKLCH | oklch(46.6% 0.055 182) |
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 #33645C | 6.73:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #33645C | 3.11:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #33645C text on white | 6.73:1 | AA | Lc 83.1 | Fine for body text |
| #33645C text on black | 3.11:1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
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
#AFC7C2
oklch(81% 0.027 181.7)
-
Step 400
400
#84AAA2
oklch(70.8% 0.043 180.7)
-
Step 500
500
#64958C
oklch(63.2% 0.055 181.7)
-
Step 600
600
#497F76
oklch(55.6% 0.06 182.2)
-
Step 700
700 (this color)
#33645C
oklch(46.6% 0.055 182)
-
Step 800
800
#315751
oklch(42.6% 0.045 182.9)
-
Step 900
900
#2B4843
oklch(37.7% 0.036 182.2)
-
Step 950
950
#1A2A27
oklch(27% 0.022 181.6)
#33645C 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) | #605F5C | 0.059 |
| Deuteranopia (no green cones) | #58595D | 0.056 |
| Tritanopia (no blue cones) | #1E6661 | 0.016 |
| Achromatopsia (no color) | #5C5C5C | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33645C
#33645C
oklch(46.6% 0.055 182)
- #744D57
#744D57
oklch(46.7% 0.054 2.6)
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 #33645C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.020
- Dark Aqua #05696B ΔE 0.030
- Petrol #005F6A ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.049
- Deep Turquoise #017374 ΔE 0.051
- Slate #516572 ΔE 0.054
- Pine #2B5D34 ΔE 0.061
- Deep Teal #00555A ΔE 0.063
Use #33645C 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.