#2D4B50
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.1% 0.037 209.1), rgb(45, 75, 80).
Aa
White text reads best on this color (9.40:1).
About this color
#2D4B50 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.037 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.014 away. White text reads best on it, at 9.40:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #2D4B50 |
| RGB | rgb(45, 75, 80) |
| HSL | hsl(189, 28%, 25%) |
| OKLCH | oklch(39.1% 0.037 209.1) |
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 #2D4B50 | 9.40:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #2D4B50 | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #2D4B50 text on white | 9.40:1 | AAA | Lc 91.7 | Preferred for body text |
| #2D4B50 text on black | 2.23:1 | Fails | Lc -10.7 | 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 900.
-
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
#CEDCDE
oklch(88.4% 0.015 207.1)
-
Step 300
300
#ADC6CA
oklch(80.9% 0.028 208.3)
-
Step 400
400
#81A9AF
oklch(70.8% 0.044 207.6)
-
Step 500
500
#60939C
oklch(63.1% 0.056 209.8)
-
Step 600
600
#457D87
oklch(55.5% 0.061 210.3)
-
Step 700
700
#366A72
oklch(49.2% 0.057 208.5)
-
Step 800
800
#2D565D
oklch(42.6% 0.047 209.7)
-
Step 900
900 (this color)
#2D4B50
oklch(39.1% 0.037 209.1)
-
Step 950
950
#192A2D
oklch(27.1% 0.023 209.7)
#2D4B50 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) | #464950 | 0.035 |
| Deuteranopia (no green cones) | #404450 | 0.033 |
| Tritanopia (no blue cones) | #1E4E4C | 0.020 |
| Achromatopsia (no color) | #464646 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4B50
#2D4B50
oklch(39.1% 0.037 209.1)
- #583E3A
#583E3A
oklch(39.2% 0.037 28.7)
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 #2D4B50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.014
- Charcoal #264653 ΔE 0.021
- Dark Grey Blue #29465B ΔE 0.029
- Dark Teal #014D4E ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.036
- Deep Teal #00555A ΔE 0.038
- Dark Blue Green #005249 ΔE 0.041
- Onyx #343A40 ΔE 0.054
Use #2D4B50 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.