#18525E
Closest named color: Deep Teal (#00555A). oklch(40.7% 0.061 214.3), rgb(24, 82, 94).
Aa
White text reads best on this color (8.72:1).
About this color
#18525E is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.061 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.017 away. White text reads best on it, at 8.72:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #18525E |
| RGB | rgb(24, 82, 94) |
| HSL | hsl(190, 59%, 23%) |
| OKLCH | oklch(40.7% 0.061 214.3) |
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 #18525E | 8.72:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #18525E | 2.40:1 | Fails | Lc 14.3 | Not readable |
| #18525E text on white | 8.72:1 | AAA | Lc 89.6 | Fine for body text |
| #18525E text on black | 2.40:1 | Fails | Lc -12.6 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A7C7CF
oklch(80.9% 0.036 214.5)
-
Step 400
400
#77AAB7
oklch(70.7% 0.057 215.4)
-
Step 500
500
#5095A5
oklch(63.1% 0.074 214.6)
-
Step 600
600
#307F90
oklch(55.6% 0.08 214.5)
-
Step 700
700
#226B7A
oklch(49% 0.074 214.2)
-
Step 800
800 (this color)
#18525E
oklch(40.7% 0.061 214.3)
-
Step 900
900
#204851
oklch(37.7% 0.047 214.4)
-
Step 950
950
#142A30
oklch(27% 0.03 217.4)
#18525E 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) | #494F5F | 0.055 |
| Deuteranopia (no green cones) | #3F485E | 0.049 |
| Tritanopia (no blue cones) | #005756 | 0.026 |
| Achromatopsia (no color) | #4B4B4B | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18525E
#18525E
oklch(40.7% 0.061 214.3)
- #673D33
#673D33
oklch(40.8% 0.062 34.2)
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 #18525E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.017
- Dark Slate Gray #2F4F4F ΔE 0.029
- Dark Teal #014D4E ΔE 0.033
- Charcoal #264653 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.039
- Dark Blue Green #005249 ΔE 0.040
- Petrol #005F6A ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.060
Use #18525E 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.