#017878
Closest named color: Bluegreen (#017A79). oklch(51.9% 0.088 194.8), rgb(1, 120, 120).
Aa
White text reads best on this color (5.30:1).
About this color
#017878 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.088 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.006 away. White text reads best on it, at 5.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #017878 |
| RGB | rgb(1, 120, 120) |
| HSL | hsl(180, 98%, 24%) |
| OKLCH | oklch(51.9% 0.088 194.8) |
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 #017878 | 5.30:1 | AA | Lc -81.2 | Fine for body text |
| Black text on #017878 | 3.95:1 | AA large text | Lc 28.2 | Dividers and decoration only |
| #017878 text on white | 5.30:1 | AA | Lc 75.8 | Fine for body text |
| #017878 text on black | 3.95:1 | AA large text | Lc -25.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DEDE
oklch(88.4% 0.023 196.7)
-
Step 300
300
#A1CAC9
oklch(80.9% 0.043 194.5)
-
Step 400
400
#6BAEAE
oklch(70.6% 0.068 195.7)
-
Step 500
500
#3C9A9A
oklch(63.1% 0.087 195.2)
-
Step 600
600
#008484
oklch(55.5% 0.095 194.8)
-
Step 700
700 (this color)
#017878
oklch(51.9% 0.088 194.8)
-
Step 800
800
#005B5B
oklch(42.7% 0.073 194.8)
-
Step 900
900
#114B4B
oklch(37.7% 0.057 195)
-
Step 950
950
#0D2C2C
oklch(27% 0.036 195.2)
#017878 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) | #6F7178 | 0.092 |
| Deuteranopia (no green cones) | #616779 | 0.086 |
| Tritanopia (no blue cones) | #007C78 | 0.013 |
| Achromatopsia (no color) | #6B6B6B | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #017878
#017878
oklch(51.9% 0.088 194.8)
- #945258
#945258
oklch(51.8% 0.088 14.8)
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 #017878, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.006
- Deep Aqua #08787F ΔE 0.012
- Deep Turquoise #017374 ΔE 0.015
- Dark Aquamarine #017371 ΔE 0.017
- Teal #008080 ΔE 0.025
- Ocean #017B92 ΔE 0.041
- Dark Aqua #05696B ΔE 0.047
- Sea Blue #047495 ΔE 0.052
Use #017878 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.