#23574E
Closest named color: Deep Teal (#00555A). oklch(41.9% 0.058 180.3), rgb(35, 87, 78).
Aa
White text reads best on this color (8.25:1).
About this color
#23574E is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.058 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.028 away. White text reads best on it, at 8.25:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.54:1 |
| White text | 8.25:1 |
Values
| HEX | #23574E |
| RGB | rgb(35, 87, 78) |
| HSL | hsl(170, 43%, 24%) |
| OKLCH | oklch(41.9% 0.058 180.3) |
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 #23574E | 8.25:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #23574E | 2.54:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #23574E text on white | 8.25:1 | AAA | Lc 88.3 | Fine for body text |
| #23574E text on black | 2.54:1 | 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
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CDDDD9
oklch(88.4% 0.018 179.3)
-
Step 300
300
#AAC8C1
oklch(80.9% 0.034 179.7)
-
Step 400
400
#7BACA2
oklch(70.7% 0.054 180.6)
-
Step 500
500
#57978B
oklch(63% 0.069 180.6)
-
Step 600
600
#3A8275
oklch(55.7% 0.075 179.9)
-
Step 700
700
#2B6E62
oklch(49.2% 0.07 179.5)
-
Step 800
800 (this color)
#23574E
oklch(41.9% 0.058 180.3)
-
Step 900
900
#244943
oklch(37.6% 0.044 182.1)
-
Step 950
950
#162B27
oklch(27% 0.028 180.5)
#23574E 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) | #53524E | 0.061 |
| Deuteranopia (no green cones) | #4B4C4F | 0.058 |
| Tritanopia (no blue cones) | #015854 | 0.018 |
| Achromatopsia (no color) | #4F4F4F | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23574E
#23574E
oklch(41.9% 0.058 180.3)
- #673F4B
#673F4B
oklch(41.9% 0.058 0.5)
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 #23574E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.028
- Dark Blue Green #005249 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.028
- Dark Green Blue #1F6357 ΔE 0.037
- Dark Teal #014D4E ΔE 0.042
- Petrol #005F6A ΔE 0.045
- Pine #2B5D34 ΔE 0.050
- Spruce #0A5F38 ΔE 0.053
Use #23574E 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.