#519A99
Closest named color: Cadet Blue (#5F9EA0). oklch(63.9% 0.073 194.3), rgb(81, 154, 153).
Aa
Black text reads best on this color (6.43:1).
About this color
#519A99 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.073 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.021 away. Black text reads best on it, at 6.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.43:1 |
| White text | 3.26:1 |
Values
| HEX | #519A99 |
| RGB | rgb(81, 154, 153) |
| HSL | hsl(179, 31%, 46%) |
| OKLCH | oklch(63.9% 0.073 194.3) |
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 #519A99 | 3.26:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #519A99 | 6.43:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #519A99 text on white | 3.26:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #519A99 text on black | 6.43:1 | AA | Lc -41.9 | 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 500.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C7
oklch(80.8% 0.035 194.2)
-
Step 400
400
#76ACAB
oklch(70.7% 0.057 194.5)
-
Step 500
500 (this color)
#519A99
oklch(63.9% 0.073 194.3)
-
Step 600
600
#2D8281
oklch(55.6% 0.08 194)
-
Step 700
700
#1E6E6D
oklch(49.2% 0.074 193.8)
-
Step 800
800
#1C5959
oklch(42.6% 0.061 195.1)
-
Step 900
900
#1E4A49
oklch(37.8% 0.048 193.3)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#519A99 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) | #929499 | 0.077 |
| Deuteranopia (no green cones) | #858A9A | 0.072 |
| Tritanopia (no blue cones) | #289E99 | 0.028 |
| Achromatopsia (no color) | #8E8E8E | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #519A99
#519A99
oklch(63.9% 0.073 194.3)
- #B47A7E
#B47A7E
oklch(64% 0.073 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 #519A99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.021
- Sea #3C9992 ΔE 0.021
- Grey Teal #5E9B8A ΔE 0.025
- Dull Teal #5F9E8F ΔE 0.025
- Persian Green #2A9D8F ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.037
- Blue Green #0F9B8E ΔE 0.042
- Teal Green #0A9396 ΔE 0.046
Use #519A99 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.