#33584C
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.9% 0.047 171.3), rgb(51, 88, 76).
Aa
White text reads best on this color (7.95:1).
About this color
#33584C is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.047 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.033 away. White text reads best on it, at 7.95:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.64:1 |
| White text | 7.95:1 |
Values
| HEX | #33584C |
| RGB | rgb(51, 88, 76) |
| HSL | hsl(161, 27%, 27%) |
| OKLCH | oklch(42.9% 0.047 171.3) |
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 #33584C | 7.95:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #33584C | 2.64:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #33584C text on white | 7.95:1 | AAA | Lc 87.5 | Fine for body text |
| #33584C text on black | 2.64:1 | Fails | Lc -14.6 | Not readable |
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 800.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#D0DDD8
oklch(88.6% 0.016 171)
-
Step 300
300
#B0C7BE
oklch(81% 0.028 170.1)
-
Step 400
400
#85AA9D
oklch(70.7% 0.045 171.5)
-
Step 500
500
#669585
oklch(63.1% 0.057 171.2)
-
Step 600
600
#4C7F6F
oklch(55.5% 0.061 172)
-
Step 700
700
#3D6B5C
oklch(49% 0.057 171)
-
Step 800
800 (this color)
#33584C
oklch(42.9% 0.047 171.3)
-
Step 900
900
#2D483F
oklch(37.7% 0.036 171.3)
-
Step 950
950
#1B2A25
oklch(27% 0.022 171.9)
#33584C 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) | #56544B | 0.049 |
| Deuteranopia (no green cones) | #504F4D | 0.047 |
| Tritanopia (no blue cones) | #285954 | 0.015 |
| Achromatopsia (no color) | #515151 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33584C
#33584C
oklch(42.9% 0.047 171.3)
- #644552
#644552
oklch(42.9% 0.047 352.4)
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 #33584C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.033
- Dark Green Blue #1F6357 ΔE 0.035
- Deep Teal #00555A ΔE 0.042
- Dark Blue Green #005249 ΔE 0.043
- Pine #2B5D34 ΔE 0.047
- Petrol #005F6A ΔE 0.051
- Spruce #0A5F38 ΔE 0.055
- Dark Teal #014D4E ΔE 0.056
Use #33584C 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.