#005B74
Closest named color: Petrol (#005F6A). oklch(43.8% 0.083 224.7), rgb(0, 91, 116).
Aa
White text reads best on this color (7.64:1).
About this color
#005B74 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.083 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.024 away. White text reads best on it, at 7.64:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #005B74 |
| RGB | rgb(0, 91, 116) |
| HSL | hsl(193, 100%, 23%) |
| OKLCH | oklch(43.8% 0.083 224.7) |
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 #005B74 | 7.64:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #005B74 | 2.74:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #005B74 text on white | 7.64:1 | AAA | Lc 86.0 | Fine for body text |
| #005B74 text on black | 2.74:1 | Fails | Lc -16.0 | 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 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
#C7DDE7
oklch(88.4% 0.027 226.8)
-
Step 300
300
#A0C8D8
oklch(80.9% 0.048 224.2)
-
Step 400
400
#69ABC5
oklch(70.7% 0.077 225.2)
-
Step 500
500
#3896B6
oklch(63.1% 0.099 224.4)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800 (this color)
#005B74
oklch(43.8% 0.083 224.7)
-
Step 900
900
#0F485B
oklch(37.6% 0.064 225.4)
-
Step 950
950
#0C2B35
oklch(27.1% 0.04 222.7)
#005B74 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) | #4D5975 | 0.063 |
| Deuteranopia (no green cones) | #3F4F74 | 0.055 |
| Tritanopia (no blue cones) | #006263 | 0.042 |
| Achromatopsia (no color) | #535353 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B74
#005B74
oklch(43.8% 0.083 224.7)
- #774229
#774229
oklch(43.8% 0.083 45.2)
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 #005B74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.024
- Deep Sea Blue #015482 ΔE 0.036
- Deep Teal #00555A ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.048
- Light Navy #155084 ΔE 0.048
- Dark Aqua #05696B ΔE 0.052
- Dusk Blue #26538D ΔE 0.057
Use #005B74 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.