#23504A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.8% 0.051 183.9), rgb(35, 80, 74).
Aa
White text reads best on this color (9.06:1).
About this color
#23504A is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.051 and its hue 184°. 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 9.06:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #23504A |
| RGB | rgb(35, 80, 74) |
| HSL | hsl(172, 39%, 23%) |
| OKLCH | oklch(39.8% 0.051 183.9) |
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 #23504A | 9.06:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #23504A | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #23504A text on white | 9.06:1 | AAA | Lc 90.7 | Preferred for body text |
| #23504A text on black | 2.31:1 | Fails | Lc -11.6 | 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
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A6C9C3
oklch(80.9% 0.038 183.8)
-
Step 400
400
#75ADA5
oklch(70.6% 0.06 184.8)
-
Step 500
500
#4C998F
oklch(63.1% 0.078 184.4)
-
Step 600
600
#2A8379
oklch(55.5% 0.084 184.5)
-
Step 700
700
#1B6F66
oklch(49.1% 0.078 184.4)
-
Step 800
800
#1A5A53
oklch(42.6% 0.065 184.7)
-
Step 900
900 (this color)
#23504A
oklch(39.8% 0.051 183.9)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#23504A 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) | #4C4C4A | 0.053 |
| Deuteranopia (no green cones) | #45464B | 0.052 |
| Tritanopia (no blue cones) | #09524E | 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°).
- #23504A
#23504A
oklch(39.8% 0.051 183.9)
- #5E3B44
#5E3B44
oklch(39.6% 0.051 2.9)
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 #23504A, 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 0.020
- Dark Teal #014D4E ΔE 0.025
- Deep Teal #00555A ΔE 0.029
- Charcoal #264653 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.052
- Petrol #005F6A ΔE 0.060
Use #23504A 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.