#519AA4
Closest named color: Cadet Blue (#5F9EA0). oklch(64.3% 0.074 207.1), rgb(81, 154, 164).
Aa
Black text reads best on this color (6.50:1).
About this color
#519AA4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.074 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.020 away. Black text reads best on it, at 6.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.50:1 |
| White text | 3.22:1 |
Values
| HEX | #519AA4 |
| RGB | rgb(81, 154, 164) |
| HSL | hsl(187, 34%, 48%) |
| OKLCH | oklch(64.3% 0.074 207.1) |
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 #519AA4 | 3.22:1 | AA large text | Lc -64.8 | Content text, not long reading |
| Black text on #519AA4 | 6.50:1 | AA | Lc 44.7 | Non-text elements, placeholder text |
| #519AA4 text on white | 3.22:1 | AA large text | Lc 59.4 | Large or bold text, headings |
| #519AA4 text on black | 6.50:1 | AA | Lc -42.4 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A6C8CD
oklch(81% 0.037 207.3)
-
Step 400
400
#75ABB3
oklch(70.6% 0.058 207.6)
-
Step 500
500 (this color)
#519AA4
oklch(64.3% 0.074 207.1)
-
Step 600
600
#2B818B
oklch(55.7% 0.081 206.1)
-
Step 700
700
#1C6D76
oklch(49.2% 0.075 206)
-
Step 800
800
#1B5860
oklch(42.6% 0.062 207.5)
-
Step 900
900
#1E494F
oklch(37.8% 0.048 207.6)
-
Step 950
950
#132B2E
oklch(27.1% 0.03 206.1)
#519AA4 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) | #8F95A5 | 0.072 |
| Deuteranopia (no green cones) | #828BA4 | 0.066 |
| Tritanopia (no blue cones) | #1DA09D | 0.038 |
| Achromatopsia (no color) | #8F8F8F | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #519AA4
#519AA4
oklch(64.3% 0.074 207.1)
- #B67C75
#B67C75
oklch(64.4% 0.074 26.9)
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 #519AA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.020
- Sea #3C9992 ΔE 0.034
- Dull Teal #5F9E8F ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.041
- Persian Green #2A9D8F ΔE 0.047
- Dusty Teal #4C9085 ΔE 0.049
- Blue Grey #758DA3 ΔE 0.050
- Teal Green #0A9396 ΔE 0.051
Use #519AA4 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.