#01857D
Closest named color: Teal (#008080). oklch(55.6% 0.097 187.4), rgb(1, 133, 125).
Aa
Black text reads best on this color (4.65:1).
About this color
#01857D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 56%, its chroma 0.097 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.018 away. Black text reads best on it, at 4.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.65:1 |
| White text | 4.51:1 |
Values
| HEX | #01857D |
| RGB | rgb(1, 133, 125) |
| HSL | hsl(176, 99%, 26%) |
| OKLCH | oklch(55.6% 0.097 187.4) |
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 #01857D | 4.51:1 | AA | Lc -76.2 | Fine for body text |
| Black text on #01857D | 4.65:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #01857D text on white | 4.51:1 | AA | Lc 70.8 | Content text, not long reading |
| #01857D text on black | 4.65:1 | AA | Lc -30.9 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C8DFDC
oklch(88.6% 0.025 187.3)
-
Step 300
300
#A2CAC5
oklch(80.9% 0.043 187)
-
Step 400
400
#6CAFA8
oklch(70.7% 0.069 187.3)
-
Step 500
500
#3C9B93
oklch(63.1% 0.089 187.5)
-
Step 600
600 (this color)
#01857D
oklch(55.6% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#124B47
oklch(37.6% 0.057 188.2)
-
Step 950
950
#0D2C2A
oklch(26.9% 0.037 189.4)
#01857D 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) | #7D7D7D | 0.103 |
| Deuteranopia (no green cones) | #6E727E | 0.096 |
| Tritanopia (no blue cones) | #008982 | 0.013 |
| Achromatopsia (no color) | #767676 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01857D
#01857D
oklch(55.6% 0.097 187.4)
- #A35A69
#A35A69
oklch(55.7% 0.097 7.5)
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 #01857D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.018
- Dark Cyan #008B8B ΔE 0.025
- Bluegreen #017A79 ΔE 0.034
- Deep Aqua #08787F ΔE 0.042
- Teal Green #0A9396 ΔE 0.050
- Ocean #017B92 ΔE 0.052
- Teal Blue #01889F ΔE 0.053
- Deep Turquoise #017374 ΔE 0.055
Use #01857D 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.