#2D4E45
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.5% 0.042 174.8), rgb(45, 78, 69).
Aa
White text reads best on this color (9.18:1).
About this color
#2D4E45 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.042 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.017 away. White text reads best on it, at 9.18:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #2D4E45 |
| RGB | rgb(45, 78, 69) |
| HSL | hsl(164, 27%, 24%) |
| OKLCH | oklch(39.5% 0.042 174.8) |
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 #2D4E45 | 9.18:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #2D4E45 | 2.28:1 | Fails | Lc 12.9 | Not readable |
| #2D4E45 text on white | 9.18:1 | AAA | Lc 91.1 | Preferred for body text |
| #2D4E45 text on black | 2.28:1 | Fails | Lc -11.3 | 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 900.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD8
oklch(88.5% 0.017 174)
-
Step 300
300
#ADC8BF
oklch(81% 0.032 173.4)
-
Step 400
400
#80AB9F
oklch(70.7% 0.05 175.8)
-
Step 500
500
#5E9787
oklch(63.2% 0.065 174.4)
-
Step 600
600
#428171
oklch(55.6% 0.07 175.1)
-
Step 700
700
#346D5E
oklch(49.1% 0.065 174.1)
-
Step 800
800
#2C594D
oklch(42.8% 0.054 174.2)
-
Step 900
900 (this color)
#2D4E45
oklch(39.5% 0.042 174.8)
-
Step 950
950
#182B26
oklch(27.1% 0.027 175.7)
#2D4E45 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) | #4C4A45 | 0.045 |
| Deuteranopia (no green cones) | #464646 | 0.042 |
| Tritanopia (no blue cones) | #234F4B | 0.012 |
| Achromatopsia (no color) | #484848 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4E45
#2D4E45
oklch(39.5% 0.042 174.8)
- #593D48
#593D48
oklch(39.5% 0.043 353.9)
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 #2D4E45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.017
- Dark Blue Green #005249 ΔE 0.029
- Dark Teal #014D4E ΔE 0.033
- Deep Teal #00555A ΔE 0.040
- Charcoal #264653 ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.053
- Evergreen #05472A ΔE 0.060
Use #2D4E45 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.