#2B4A49
Closest named color: Dark Slate Gray (#2F4F4F). oklch(38.5% 0.037 193.1), rgb(43, 74, 73).
Aa
White text reads best on this color (9.63:1).
About this color
#2B4A49 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.037 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.018 away. White text reads best on it, at 9.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.17:1 |
| White text | 9.63:1 |
Values
| HEX | #2B4A49 |
| RGB | rgb(43, 74, 73) |
| HSL | hsl(178, 26%, 23%) |
| OKLCH | oklch(38.5% 0.037 193.1) |
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 #2B4A49 | 9.63:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #2B4A49 | 2.17:1 | Fails | Lc 11.7 | Not readable |
| #2B4A49 text on white | 9.63:1 | AAA | Lc 92.3 | Preferred for body text |
| #2B4A49 text on black | 2.17:1 | Fails | Lc -10.2 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDCDC
oklch(88.4% 0.015 196.9)
-
Step 300
300
#ADC7C5
oklch(81% 0.028 190.9)
-
Step 400
400
#81AAA8
oklch(70.8% 0.044 192.5)
-
Step 500
500
#5F9593
oklch(63.2% 0.057 192.8)
-
Step 600
600
#447F7D
oklch(55.6% 0.062 192.7)
-
Step 700
700
#356B6A
oklch(49.1% 0.057 193.9)
-
Step 800
800
#2D5756
oklch(42.6% 0.047 193.5)
-
Step 900
900 (this color)
#2B4A49
oklch(38.5% 0.037 193.1)
-
Step 950
950
#182A2A
oklch(26.9% 0.024 195.8)
#2B4A49 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) | #464749 | 0.038 |
| Deuteranopia (no green cones) | #414349 | 0.036 |
| Tritanopia (no blue cones) | #1E4C4A | 0.013 |
| Achromatopsia (no color) | #454545 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4A49
#2B4A49
oklch(38.5% 0.037 193.1)
- #563C3E
#563C3E
oklch(38.6% 0.037 13.8)
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 #2B4A49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.018
- Charcoal #264653 ΔE 0.026
- Dark Teal #014D4E ΔE 0.028
- Charcoal Grey #3C4142 ΔE 0.033
- Dark Blue Green #005249 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.038
- Deep Teal #00555A ΔE 0.041
- Onyx #343A40 ΔE 0.050
Use #2B4A49 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.