#23574B
Closest named color: Dark Blue Green (#005249). oklch(41.8% 0.059 175.8), rgb(35, 87, 75).
Aa
White text reads best on this color (8.27:1).
About this color
#23574B is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.059 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.027 away. White text reads best on it, at 8.27:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Values
| HEX | #23574B |
| RGB | rgb(35, 87, 75) |
| HSL | hsl(166, 43%, 24%) |
| OKLCH | oklch(41.8% 0.059 175.8) |
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 #23574B | 8.27:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #23574B | 2.53:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #23574B text on white | 8.27:1 | AAA | Lc 88.4 | Fine for body text |
| #23574B text on black | 2.53:1 | Fails | Lc -13.8 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CDDED8
oklch(88.6% 0.02 172.7)
-
Step 300
300
#AAC8C0
oklch(80.8% 0.034 177.5)
-
Step 400
400
#7CAC9F
oklch(70.6% 0.055 176)
-
Step 500
500
#589888
oklch(63.2% 0.071 176)
-
Step 600
600
#3A8271
oklch(55.5% 0.077 175.6)
-
Step 700
700
#2C6E5F
oklch(49.1% 0.072 175.8)
-
Step 800
800 (this color)
#23574B
oklch(41.8% 0.059 175.8)
-
Step 900
900
#244A40
oklch(37.8% 0.047 174.5)
-
Step 950
950
#162B26
oklch(27% 0.029 177.1)
#23574B 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) | #54524A | 0.062 |
| Deuteranopia (no green cones) | #4C4C4C | 0.059 |
| Tritanopia (no blue cones) | #045853 | 0.018 |
| Achromatopsia (no color) | #4E4E4E | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23574B
#23574B
oklch(41.8% 0.059 175.8)
- #663F4E
#663F4E
oklch(41.8% 0.058 355.3)
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 #23574B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.031
- Deep Teal #00555A ΔE 0.032
- Dark Green Blue #1F6357 ΔE 0.038
- Dark Teal #014D4E ΔE 0.043
- Pine #2B5D34 ΔE 0.046
- Spruce #0A5F38 ΔE 0.049
- Petrol #005F6A ΔE 0.049
Use #23574B 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.