#23565E
Closest named color: Deep Teal (#00555A). oklch(42.2% 0.056 209.2), rgb(35, 86, 94).
Aa
White text reads best on this color (8.18:1).
About this color
#23565E is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.056 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.021 away. White text reads best on it, at 8.18:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.56:1 |
| White text | 8.18:1 |
Values
| HEX | #23565E |
| RGB | rgb(35, 86, 94) |
| HSL | hsl(188, 46%, 25%) |
| OKLCH | oklch(42.2% 0.056 209.2) |
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 #23565E | 8.18:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #23565E | 2.56:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #23565E text on white | 8.18:1 | AAA | Lc 88.1 | Fine for body text |
| #23565E text on black | 2.56:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDDF
oklch(88.5% 0.018 205.3)
-
Step 300
300
#A9C7CC
oklch(80.9% 0.033 208.8)
-
Step 400
400
#7AAAB2
oklch(70.7% 0.052 208.9)
-
Step 500
500
#56959F
oklch(63.1% 0.067 208.7)
-
Step 600
600
#387F8A
oklch(55.6% 0.072 209)
-
Step 700
700
#2A6B75
oklch(49.1% 0.067 209.1)
-
Step 800
800 (this color)
#23565E
oklch(42.2% 0.056 209.2)
-
Step 900
900
#23484E
oklch(37.7% 0.043 209.1)
-
Step 950
950
#152A2E
oklch(26.9% 0.028 211.1)
#23565E 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) | #4F535F | 0.054 |
| Deuteranopia (no green cones) | #464C5E | 0.049 |
| Tritanopia (no blue cones) | #005A58 | 0.025 |
| Achromatopsia (no color) | #4F4F4F | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23565E
#23565E
oklch(42.2% 0.056 209.2)
- #69423C
#69423C
oklch(42.3% 0.056 29.2)
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 #23565E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.028
- Petrol #005F6A ΔE 0.030
- Dark Blue Green #005249 ΔE 0.043
- Dark Teal #014D4E ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.048
- Charcoal #264653 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.051
Use #23565E 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.