#33515A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.5% 0.039 218.7), rgb(51, 81, 90).
Aa
White text reads best on this color (8.51:1).
About this color
#33515A is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.039 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.019 away. White text reads best on it, at 8.51:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.46:1 |
| White text | 8.51:1 |
Values
| HEX | #33515A |
| RGB | rgb(51, 81, 90) |
| HSL | hsl(194, 28%, 28%) |
| OKLCH | oklch(41.5% 0.039 218.7) |
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 #33515A | 8.51:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #33515A | 2.46:1 | Fails | Lc 14.7 | Not readable |
| #33515A text on white | 8.51:1 | AAA | Lc 89.3 | Fine for body text |
| #33515A text on black | 2.46:1 | Fails | Lc -13.0 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D1DBDF
oklch(88.5% 0.012 223.5)
-
Step 300
300
#B1C4CA
oklch(80.8% 0.022 218.7)
-
Step 400
400
#88A6B0
oklch(70.6% 0.036 220.1)
-
Step 500
500
#6A919C
oklch(63.2% 0.046 217.1)
-
Step 600
600
#517B87
oklch(55.7% 0.05 217.7)
-
Step 700
700
#416773
oklch(49% 0.047 219.9)
-
Step 800
800 (this color)
#33515A
oklch(41.5% 0.039 218.7)
-
Step 900
900
#2F464C
oklch(37.8% 0.03 215.8)
-
Step 950
950
#1C292D
oklch(27.1% 0.019 218.7)
#33515A 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) | #4B4F5B | 0.033 |
| Deuteranopia (no green cones) | #454B5A | 0.029 |
| Tritanopia (no blue cones) | #235454 | 0.023 |
| Achromatopsia (no color) | #4D4D4D | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33515A
#33515A
oklch(41.5% 0.039 218.7)
- #5F453C
#5F453C
oklch(41.6% 0.039 39.9)
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 #33515A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.019
- Deep Teal #00555A ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.040
- Charcoal #264653 ΔE 0.041
- Dark Teal #014D4E ΔE 0.047
- Petrol #005F6A ΔE 0.049
- Dark Blue Green #005249 ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.054
Use #33515A 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.