#23504C
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.8% 0.05 187.7), rgb(35, 80, 76).
Aa
White text reads best on this color (9.03:1).
About this color
#23504C is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.050 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.015 away. White text reads best on it, at 9.03:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #23504C |
| RGB | rgb(35, 80, 76) |
| HSL | hsl(175, 39%, 23%) |
| OKLCH | oklch(39.8% 0.05 187.7) |
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 #23504C | 9.03:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #23504C | 2.32:1 | Fails | Lc 13.3 | Not readable |
| #23504C text on white | 9.03:1 | AAA | Lc 90.6 | Preferred for body text |
| #23504C text on black | 2.32:1 | Fails | Lc -11.7 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CBDEDB
oklch(88.6% 0.021 185.4)
-
Step 300
300
#A6C9C5
oklch(80.9% 0.038 187.9)
-
Step 400
400
#74ADA7
oklch(70.7% 0.06 187.6)
-
Step 500
500
#4C9992
oklch(63.2% 0.077 187.6)
-
Step 600
600
#29837C
oklch(55.6% 0.084 187.6)
-
Step 700
700
#1A6F69
oklch(49.2% 0.078 187.9)
-
Step 800
800
#1A5A55
oklch(42.6% 0.064 187.6)
-
Step 900
900 (this color)
#23504C
oklch(39.8% 0.05 187.7)
-
Step 950
950
#122B29
oklch(26.8% 0.031 188.7)
#23504C 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) | #4C4C4C | 0.053 |
| Deuteranopia (no green cones) | #45464D | 0.052 |
| Tritanopia (no blue cones) | #07524F | 0.016 |
| Achromatopsia (no color) | #494949 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23504C
#23504C
oklch(39.8% 0.05 187.7)
- #5F3C42
#5F3C42
oklch(39.9% 0.05 8.4)
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 #23504C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.015
- Dark Blue Green #005249 ΔE 0.022
- Dark Teal #014D4E ΔE 0.024
- Deep Teal #00555A ΔE 0.027
- Charcoal #264653 ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.052
- Petrol #005F6A ΔE 0.058
Use #23504C 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.