#2B515C
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.1% 0.047 218.7), rgb(43, 81, 92).
Aa
White text reads best on this color (8.62:1).
About this color
#2B515C is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.047 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.021 away. White text reads best on it, at 8.62:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.43:1 |
| White text | 8.62:1 |
Values
| HEX | #2B515C |
| RGB | rgb(43, 81, 92) |
| HSL | hsl(193, 36%, 26%) |
| OKLCH | oklch(41.1% 0.047 218.7) |
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 #2B515C | 8.62:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #2B515C | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #2B515C text on white | 8.62:1 | AAA | Lc 89.5 | Fine for body text |
| #2B515C text on black | 2.43:1 | Fails | Lc -12.7 | 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
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CFDCE0
oklch(88.6% 0.015 218.1)
-
Step 300
300
#AEC5CD
oklch(80.9% 0.027 220.7)
-
Step 400
400
#82A8B3
oklch(70.7% 0.044 217.4)
-
Step 500
500
#6292A0
oklch(63.1% 0.056 218)
-
Step 600
600
#477C8B
oklch(55.5% 0.061 218.1)
-
Step 700
700
#386976
oklch(49.2% 0.057 217)
-
Step 800
800 (this color)
#2B515C
oklch(41.1% 0.047 218.7)
-
Step 900
900
#2A464F
oklch(37.6% 0.037 220.3)
-
Step 950
950
#19292E
oklch(26.9% 0.023 219.4)
#2B515C 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) | #4A4F5D | 0.041 |
| Deuteranopia (no green cones) | #42495C | 0.037 |
| Tritanopia (no blue cones) | #0F5554 | 0.030 |
| Achromatopsia (no color) | #4C4C4C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B515C
#2B515C
oklch(41.1% 0.047 218.7)
- #614238
#614238
oklch(41.1% 0.047 38.6)
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 #2B515C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.021
- Deep Teal #00555A ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.036
- Charcoal #264653 ΔE 0.037
- Dark Teal #014D4E ΔE 0.041
- Petrol #005F6A ΔE 0.045
- Dark Blue Green #005249 ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.057
Use #2B515C 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.