#519CAF
Closest named color: Cadet Blue (#5F9EA0). oklch(65.2% 0.079 216.4), rgb(81, 156, 175).
Aa
Black text reads best on this color (6.72:1).
About this color
#519CAF is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.079 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.027 away. Black text reads best on it, at 6.72:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.72:1 |
| White text | 3.12:1 |
Values
| HEX | #519CAF |
| RGB | rgb(81, 156, 175) |
| HSL | hsl(192, 37%, 50%) |
| OKLCH | oklch(65.2% 0.079 216.4) |
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 #519CAF | 3.12:1 | AA large text | Lc -63.5 | Content text, not long reading |
| Black text on #519CAF | 6.72:1 | AA | Lc 46.0 | Large or bold text, headings |
| #519CAF text on white | 3.12:1 | AA large text | Lc 58.1 | Large or bold text, headings |
| #519CAF text on black | 6.72:1 | AA | Lc -43.7 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A5C7D1
oklch(80.8% 0.039 217.5)
-
Step 400
400
#73ABBA
oklch(70.8% 0.062 216.4)
-
Step 500
500 (this color)
#519CAF
oklch(65.2% 0.079 216.4)
-
Step 600
600
#278094
oklch(55.7% 0.086 216.1)
-
Step 700
700
#176C7E
oklch(49.2% 0.081 216)
-
Step 800
800
#185866
oklch(42.7% 0.066 215.6)
-
Step 900
900
#1C4853
oklch(37.6% 0.051 216.8)
-
Step 950
950
#122A31
oklch(26.9% 0.033 219.1)
#519CAF 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) | #8F98B0 | 0.070 |
| Deuteranopia (no green cones) | #818DAF | 0.064 |
| Tritanopia (no blue cones) | #04A3A2 | 0.048 |
| Achromatopsia (no color) | #929292 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #519CAF
#519CAF
oklch(65.2% 0.079 216.4)
- #BB7F6E
#BB7F6E
oklch(65.3% 0.079 36.5)
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 #519CAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.027
- Greyblue #77A1B5 ΔE 0.044
- Sea #3C9992 ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.051
- Blue Grey #758DA3 ΔE 0.051
- Silver Lake Blue #778DA9 ΔE 0.053
- Grey Teal #5E9B8A ΔE 0.055
- Faded Blue #658CBB ΔE 0.057
Use #519CAF 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.