#005570
Closest named color: Deep Sea Blue (#015482). oklch(42% 0.082 228.1), rgb(0, 85, 112).
Aa
White text reads best on this color (8.28:1).
About this color
#005570 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.082 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.032 away. White text reads best on it, at 8.28:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.53:1 |
| White text | 8.28:1 |
Values
| HEX | #005570 |
| RGB | rgb(0, 85, 112) |
| HSL | hsl(194, 100%, 22%) |
| OKLCH | oklch(42% 0.082 228.1) |
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 #005570 | 8.28:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #005570 | 2.53:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #005570 text on white | 8.28:1 | AAA | Lc 88.1 | Fine for body text |
| #005570 text on black | 2.53:1 | Fails | Lc -14.1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE7
oklch(88.5% 0.026 227.9)
-
Step 300
300
#A1C7D9
oklch(80.8% 0.048 228.3)
-
Step 400
400
#6BAAC6
oklch(70.6% 0.077 228.1)
-
Step 500
500
#3D95B8
oklch(63.1% 0.098 227.8)
-
Step 600
600
#0A7FA4
oklch(55.7% 0.106 227.6)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800 (this color)
#005570
oklch(42% 0.082 228.1)
-
Step 900
900
#13485C
oklch(37.7% 0.064 227.7)
-
Step 950
950
#0E2A36
oklch(27% 0.04 229.1)
#005570 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) | #475371 | 0.059 |
| Deuteranopia (no green cones) | #394A70 | 0.050 |
| Tritanopia (no blue cones) | #005D5E | 0.046 |
| Achromatopsia (no color) | #4E4E4E | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005570
#005570
oklch(42% 0.082 228.1)
- #713E22
#713E22
oklch(42.1% 0.082 48.1)
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 #005570, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.032
- Petrol #005F6A ΔE 0.037
- Deep Teal #00555A ΔE 0.038
- Light Navy #155084 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.052
- Light Navy Blue #2E5A88 ΔE 0.052
- YInMn Blue #415A77 ΔE 0.056
- Dusk Blue #26538D ΔE 0.056
Use #005570 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.