#017981
Closest named color: Deep Aqua (#08787F). oklch(52.5% 0.089 202.9), rgb(1, 121, 129).
Aa
White text reads best on this color (5.18:1).
About this color
#017981 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.089 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.004 away. White text reads best on it, at 5.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.05:1 |
| White text | 5.18:1 |
Values
| HEX | #017981 |
| RGB | rgb(1, 121, 129) |
| HSL | hsl(184, 98%, 25%) |
| OKLCH | oklch(52.5% 0.089 202.9) |
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 #017981 | 5.18:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #017981 | 4.05:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #017981 text on white | 5.18:1 | AA | Lc 75.1 | Fine for body text |
| #017981 text on black | 4.05:1 | AA large text | Lc -26.6 | 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 600.
-
Step 50
50
#F2F7F7
oklch(97.2% 0.005 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CC
oklch(80.9% 0.041 202.3)
-
Step 400
400
#6FADB2
oklch(70.7% 0.064 202.3)
-
Step 500
500
#43989F
oklch(63.1% 0.082 202.7)
-
Step 600
600 (this color)
#017981
oklch(52.5% 0.089 202.9)
-
Step 700
700
#036E75
oklch(49% 0.083 202.6)
-
Step 800
800
#0D5A60
oklch(42.8% 0.069 203.2)
-
Step 900
900
#174A4E
oklch(37.7% 0.053 202.5)
-
Step 950
950
#0F2B2E
oklch(26.9% 0.034 204.8)
#017981 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) | #6E7382 | 0.089 |
| Deuteranopia (no green cones) | #5F6881 | 0.082 |
| Tritanopia (no blue cones) | #007E7B | 0.021 |
| Achromatopsia (no color) | #6D6D6D | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #017981
#017981
oklch(52.5% 0.089 202.9)
- #975452
#975452
oklch(52.4% 0.09 22.4)
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 #017981, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.004
- Bluegreen #017A79 ΔE 0.014
- Teal #008080 ΔE 0.023
- Deep Turquoise #017374 ΔE 0.024
- Ocean #017B92 ΔE 0.027
- Dark Aquamarine #017371 ΔE 0.028
- Sea Blue #047495 ΔE 0.040
- Dark Aqua #05696B ΔE 0.054
Use #017981 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.